Solder copper coil with ss tank of water cooler 

1 ghante me 50 ft coil kardeta me .... Wo b ekdum saaf safai se..

Very good video sir can you share the 200 litters -40 deep freeze evoperator coil between each tune distence

Ese koun karata he 1hour me 50 feet kr dete he

How to make soldering flux and rod material

It's out of date ideas... It's just repair the small one... 🤣🤣🤣

Whoic flux use use

Very poor workmanship.