Machine can weld steel, stainless steel, and red Cu

 Weld longitudinal seam on cylinder/tank. Welding process will be continual and steady. 

 TIG welding type. The process of TIG welding is: Tungsten electrode excites arc and creates a weld pool, and the filler is workpiece itself, not solder/welding wire. Longitudinal seam will be successfully welded with the help of Tungsten electrode under high temperature. There is not filler wire, there will not be liquid metal. Welding time is shorter, heat will disappear immediately.

 Machine can work continuously for 24-hour.