Off Grid Solar Inverter Without Battery

 Very soon We Launch Solar Inverter without battery which is totally different from on-grid & off-grid inverter.

HOME REGULATOR (SMPS BASED) FOR AC MAINS FLACTUATION & LOW HI VOLTAGE PROBLEM

Why use this?

 We all face a common problem in our home that our mains line voltage change several time within a day. It's mainly varies in summer & winter season. Another big problem is after cutoff the line voltage when it's comeback, the line voltage apply suddenly surge voltage to our home appliances & due to this, many time our costly home appliances damage permanently.

 

 Many of the people try to overcome this problem by using voltage stabilizer. This is a good idea. But when a whole house connected from a Transformer based Relay operated voltage stabilizer, during the voltage fluctuation period all lighting system & all fan are facing more or less up to 40-50v fluctuation & so, those are continuously facing the high-low voltage problem. 

   Contact :- +91-9339470435, +91-9831509479

                                                    (Any Day 4 pm to 9 pm)

 The smps based voltage regulator not operate by iron core transformer, nor using tap combined relay. It's run just by PWM technology. So it's run smoothly & main the output voltage by 1-2% maximum tolerance. No load consumption of this device is just only 1-2Watt. So as an voltage stabilizer character, it's also a energy saver device.

Feature of this Product:-

1. Wide Input voltage range like 150-300v ac.

2. Fixed output voltage 225v (1-2% tolerance)

3. Soft start facility. At the starting time the out voltage increasing smoothly from 0.

4. Overload Protection. 

5. Short circuit protection.

6. Mains input voltage Hi-Low Protection.

 Product going ready for sale very soon...….

CONSTANT CURRENT CHARGER 3V TO 65V 10AMP

   It's a great product for Battery industry for maintain a battery life when maintain the charging process by this charger with battery. Also it's another better use is for service the battery & when making the battery plate's. This charger maintain the constant charging current where it's current is adjust, because it's very user-friendly charger for adjust the current. We manufacture the various charging current range of charger according to requirement. 

  Operation :- The adjustable charging current range is 0.25 amp to 10amp. it's doesn't matter that the battery is 1 or 4. The maximum range of battery charging of this charger is presently 4 battery(48v battery). The maximum range of charging current is up to 50amp for customize product. The charging current tolerance after adjustment is only 0.5%-1 % of the charging current. So, never ever see the voltage label when the charger is in manual mood, because the charger have 2 mood, auto and manual. In auto mood, the charger have 1battery, 2 battery & 4 battery auto charge complete function, whereas in manual mood it's not have this. So, in manual mood the charger continuously charge the battery at fixed current where the current is last adjusted.  

More details coming Soon..........

        Contact :- +91-9339470435, +91-9831509479

                                                    (Any Day 4 pm to 9 pm)

Best Quality Automatic Stabilizer Transformer Winding wire gauge selection Calculation Process

  

              Contact :- +91-9339470435, +91-9831509479

                                                         (Any Day 4 pm to 9 pm)

                                                    

Today we discuss only about wire gauge selection, not about total transformer winding process.

  When you construct an Automatic Stabilizer Transformer, the most vital thing is to calculate the wire gauge of the winding. If the wire gauge is not equal with the minimum required rated current according to the output load, you got so far voltage drop to the output within no-load & on-load condition.

   This is normal fact in every coil related product that when a load is connect on the coil, some voltage drop must be happen due to coil resistance, this is normal case. That's why when you select the wire gauge for winding a coil, you must maintain the minimum wire gauge according to the rated current with respect of required output load.

  If the wire gauge is so lower than required, you found more & more voltage drop within no-load & on-load condition.

  Also if the wire gauge is so lower than required, you found more & more temperature difference within no-load & on-load condition.  You got maximum temperature from transformer when it's maintain 50%-60% load on output & if the transformer running  long time on this situation, you found it's coil can burn out at certain stage.

  So, wire gauge selection is a very much essential parameter for any of coil related product, specially applicable in transformer.
  

  In transformer related product, if you want to make a warranty included product & if you want to maintain your goodwill in customer segment with this product, firstly you have no other choice except maintain the proper wire gauge in the coil. 

  Follow the calculation step by which you select the wire gauge👇 

  Step1 :-  Select the capacity of the stabilizer in VA. After that multiply this value with 0.8, You got actual capacity of this stabilizer (80% performace assume).

  Example :- If you want to make 500VA Stabilizer, the actual maximum load capacity of this stabilizer is 400watt (80% performace assume).

  Step2 :-  Now, this is the most important thing is to identify that which wire gauge is use to make this transformer. Let's see carefully the transformer design according to our 50V kit given bellow👇 

   In this picture you see that there have 1 common point & after that there have 5 tapping point, mean's 5 coil. We all are well known that an automatic stabilizer transformer work as an step-up & step-down in both situation according to input voltage with respect of output voltage as operated by relay. So, at the low input voltage condition it's work on Boost situation for increasing the output voltage & at the high input voltage condition it's work on Buck situation for decreasing the output voltage. Now here we assume that the common neutral point is A & after that first tapping at 62V point is B, next at 92V point is C, at 136V point is C, at 166V point is D, at 200V point is E.

   Now we start calculation of our transformer coil step by step from low voltage. 

Calculation stage 1:-

   Previously you see the calculation in which we find out our transformer capacity which we want to make is 400 Watt. so, when the 400 watt load is apply on output of the stabilizer & is this time the line voltage is just only 62 Volt, at this situation the stabilizer output is 200 Volt which we got practically by our design. so, the current flow through the load is Watt/Voltage which is 400/200 = 2 Amp. At this condition, the input voltage apply in A to B Point which is 62 Volt. The gap (Output - Input) voltage must generate by output coil which is B to F. Generally the load current is obviously flow through the output coil & so it's wire gauge not less than 2 Amp support wire gauge. This is the secondary wire gauge calculation scenario. Follow the wire gauge chart at the bottom. But it's just final for E to F coil wire gauge, not for B to F total coil wire gauge. Don't forget that we get another situation when E to F is only secondary coil & A to E is totally primary coil. So, before doing the calculation we never confirm about the B to E coil wire gauge.

   Now let's find-out the primary gauge mean's A to B coil wire gauge. First we calculate the secondary coil load. The secondary coil load is in watt = volt x amp mean's gap (Output - Input) voltage x load current = (200-62) x 2 = 276 watt. Previously we know that this transformer efficiency is 80%, so the secondary coil load is 80% load of primary coil which not include the core loss. So, the primary coil load is 276 x 100/80 = 345 watt at that time. This is the most & most vital point which look-over by maximum manufacturer & that's why their transformer don't have  longer life in low voltage. Now it's easy for us to find-out the primary coil current flow which is watt/volt = 345/62 = 5.5645 amp. Now we got just A to B wire gauge. Follow the wire gauge chart at the bottom.

               See given below picture👇

Calculation stage 2:-

   This time the line voltage is just only 92 Volt, at this situation the stabilizer output is 200 Volt which we got practically by our design. so, the current flow through the load is Watt/Voltage which is 400/200 = 2 Amp. At this condition, the input voltage apply in A to C Point which is 92 Volt. The gap (Output - Input) voltage must generate by output coil which is C to F. Generally the load current is obviously flow through the output coil & so it's wire gauge not less than 2 Amp support wire gauge. This is the secondary wire gauge calculation scenario. Follow the wire gauge chart at the bottom. But it's just final for E to F coil wire gauge, not for C to F total coil wire gauge. Don't forget that we get another situation when E to F is only secondary coil & A to E is totally primary coil. So, before doing the calculation we never confirm about the B to E coil wire gauge.

   Now let's find-out the primary gauge mean's A to C coil wire gauge. First we calculate the secondary coil load. The secondary coil load is in watt = volt x amp mean's gap (Output - Input) voltage x load current = (200-92) x 2 = 216 watt. Previously we know that this transformer efficiency is 80%, so the secondary coil load is 80% load of primary coil which not include the core loss. So, the primary coil load is 216 x 100/80 = 270 watt at that time.  Now the primary coil current flow is watt/volt = 270/92 = 2.9347 amp. Previously we got A to B wire gauge. Now we got just B to C wire gauge. Follow the wire gauge chart at the bottom.

               See given below picture👇

Calculation stage 3:-

   This time the line voltage is just only 136 Volt, at this situation the stabilizer output is 200 Volt which we got practically by our design. so, the current flow through the load is Watt/Voltage which is 400/200 = 2 Amp. At this condition, the input voltage apply in A to D Point which is 136 Volt. The gap (Output - Input) voltage must generate by output coil which is D to F. Generally the load current is obviously flow through the output coil & so it's wire gauge not less than 2 Amp support wire gauge. This is the secondary wire gauge calculation scenario. Follow the wire gauge chart at the bottom. But it's just final for E to F coil wire gauge, not for D to F total coil wire gauge. Don't forget that we get another situation when E to F is only secondary coil & A to E is totally primary coil. So, before doing the calculation we never confirm about the B to E coil wire gauge.

   Now let's find-out the primary gauge mean's A to D coil wire gauge. First we calculate the secondary coil load. The secondary coil load is in watt = volt x amp mean's gap (Output - Input) voltage x load current = (200-136) x 2 = 128 watt. Previously we know that this transformer efficiency is 80%, so the secondary coil load is 80% load of primary coil which not include the core loss. So, the primary coil load is 128 x 100/80 = 160 watt at that time.  Now the primary coil current flow is watt/volt = 160/136 = 1.1764 amp. Follow the wire gauge chart at the bottom. Previously we got A to C wire gauge. Now we got just C to D wire gauge. But in this calculation stage we see that our present primary current calculation value is lower than load current value, which never allow for design. so we must maintain the next all coil wire gauge means D to E & E to F equal to our first stage calculation. After that no need to calculate the next coil wire gauge when you got the present primary coil current value is lower than last output coil current value & maintain the equal gauge for all rest coil. Follow the wire gauge chart at the bottom.

               See given below all picture👇

  Step3 :-  Carefully see the below chart where you found the wire gauge according to ampere(current). 👇

Note:- "We well known that the theory never meet the practical due to cheap price demand from customer end". 

92V to 290V 15 KVA Stabiliser Kit (Special Case)

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 92V to 290V. We are working as a manufacturer of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

92V to 290V 12 KVA Stabiliser Kit

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 92V to 290V. We are working as a manufacturer of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

92V to 290V 10 KVA Stabiliser Kit

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 92V to 290V. We are working as a manufacturer of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

92V to 290V 7.5 KVA Stabiliser Kit

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 92V to 290V. We are working as a manufacturer of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

92V to 290V 5 KVA Stabiliser Kit

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 92V to 290V. We are working as a manufacturer of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

92V to 290V 4 KVA Stabiliser Kit

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 92V to 290V. We are working as a manufacturer of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

92V to 290V 2 KVA Stabiliser Kit

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 92V to 290V. We are working as a manufacturer of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

92V to 290V 3 KVA Stabiliser Kit

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 92V to 290V. We are working as a manufacturer of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

92V to 290V 1 KVA Stabiliser Kit

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 92V to 290V. We are working as a manufacturer of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

92V to 290V 500VA Stabiliser Kit

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 92V to 290V. We are working as a manufacturer of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

        SAME AS 62V 500 VA JUST 62 LOOP LEFT 

            Click here for referance Example..

To run this kit, just use a simple oscillation coil, which is easily winding on the automatic transformer coil. So, for run this coil there have no requirement to provide extra sensing transformer.

                     Transformer Winding Design 👇                

62V to 290V 15 KVA Stabiliser Kit (Special Case)

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 62V to 290V. We are working as an manufacture of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

62V to 290V 12 KVA Stabiliser Kit

 It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 62V to 290V. We are working as an manufacture of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

62V to 290V 10 KVA Stabiliser Kit

 It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 62V to 290V. We are working as an manufacture of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

62V to 290V 7.5 KVA Stabiliser Kit

  It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 62V to 290V. We are working as an manufacture of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

62V to 290V 5 KVA Stabiliser Kit

 It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 62V to 290V. We are working as an manufacture of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

62V to 290V 4 KVA Stabiliser Kit

 It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 62V to 290V. We are working as an manufacture of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

 Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

62V to 290V 3 KVA Stabiliser Kit

 It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 62V to 290V. We are working as an manufacture of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

Contact :- +91-9339470435, +91-9831509479

                     Connection diagram of this kit👇

62V to 290V 2 KVA Stabiliser Kit

 Contact :- +91-9339470435, +91-9831509479

It's an Automatic Stabilizer Kit Based on Iron core Transformer. Working AC Voltage Range is 62V to 290V. We are working as an manufacture of this kit from 2014. We continuously improve the Pcb quality according to market demand. This kit Specially gain the faith of those small scale Stabilizer manufacturer who not experienced previously for making the automatic stabilizer & After start their business with the help of this kit at there startup time, till today they all are continuously use this kit. This is happen mainly because of the simplicity of this kit setting's. The total setting's of this kit depend only on 2 preset in this kit. 1 is for voltage rage adjust & another is for output timer adjust, that's all.

                     Connection diagram of this kit👇

To run this kit, just use a simple oscillation coil, which is easily winding on the automatic transformer coil. So, for run this coil there have no requirement to provide extra sensing transformer.

Battery Charger Technology Sale From Kolkata............... :- Led Indicator Based SMPS 48V 10.5 Amp

           Contact :- +91-9339470435, +91-9831509479

                         Rs. 55,600/- (INR Value)  (Fixed Price)
                                  

This is a SMPS based Battery Charger for charging fixed 4 Battery mainly used in Tuktuk(Toto) Battery vehicles. We provide all details to purchaser who purchase 
this technology for manufacturing this type of charger.

PCB Design PDF File ( Copper Layer & Parts Marking Layer & Masking Layer ),  Parts List, Heat-sink Size Detail's, Coil & Core Details, Programmed ic**.

** Programmed ic Price Available Based on Quantity. We provide the price according to number of ic in order package. 

To know package details, please contact us:- 
Whatsapp to +91-9339470435 or email to  rbworldmicro@gmail.com

Read Carefully all details & Condition's.

Order Process:-        

Step 1 :- Send an email with full contact & address details at rbworldmicro@gmail.com .

Step 2 :- After receive our feedback, make the payment of technology one time charge 
              & send the transaction screen shot by email to rbworldmicro@gmail.com , 
              Whats-app confirmation not allow for this step.

Step 3 :- After we receive the payment, we send you 2 sample ic to the provided address.

Step 4 :- After complete the PCB assemble process, contact us for any changes required 
              in PCB or Programming. PCB design correction is free of cost, ic program 
              correction is chargeable (sample ic receiving + sending shipping charge).

Step 5 :- After complete all step's, Finally submit the order of Programmed ic on suitable price according to number of ic in order package.

                                            Contact Details Given Below👇👇👇                                 

                                                 RAJU BOSE                                                     
                                            Mobile:-         +91-9339470435
                                            Mobile:-         +91-9831509479                                               
                                            What's App : +91-9339470435                                                   
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