Soldering guns (hand gun) lightweight and convenient, reasonable design, installing Tin line simple, Tin stable, more easily, avoiding the hassles of soldering iron use. The soldering gun is a composite-type soldering gun, with a dedicated line of Tin and Tin volume triple soldering guns and have access to outside help. Soldering guns (hand gun) configuration for seamless stainless steel tubes, high quality heater, long working life. Replace heater quickly and easily, no need to disassemble the trigger system. Adoption of long-life tip or tip, can be welded more than 50,000 solder; send tube is made of nickel-plated copper tube and heat-resistant Teflon tube, solved Tin nozzle clogging phenomenon.