1、Adopt advanced inverter technology, used import MOSFET component, have the very good constant current characteristic, for sheet welding, shape is good, efficiency is high, energy-conservation is remarkable; 2、Carried easily for small volume and light weight; 3、Suitable for welding stainless steel, carbon steel, copper and other nonferrous metals; 4、Used extensively for fitment, outdoor installation, kitchen utensils, medical machinery, food machinery, machinery maintaining and chemical machinery.