Automatic Cookware Stainless Steel Welding Machine , Food Steamer DC Spot Welder DESCRIPTION This machine is composed of gantry type structure, welding transformer, pneumatic drive device, upper and lower electrodes, electrical control system, cooling system, and PLC operation control system. The general welder for welding flat net in the market can only weld the square and rectangle net. However, except for square and rectangle, this machine could be used to weld triangle,