... One machine to be completed by welding, manual arc welding two processes 2. Easy arc, arc stability, weld pool and easy control 3 ... frequency, small size, light weight ,tungsten electrode protect 9. Length can be adjusted at any time 10. 500A welding machine ... sheet: carbon steel, stainless steel welding. Excellent dynamic characters, arc stability, welding forming good. 3.This machine can perform to ...