Automatic Welding Machine 1 spot welding, row welding 2 microcontroller integrated control 3 water-cooled hi Automatic Welding MachineFeatures:1, with spot welding, projection welding, Pai welding function;2, pressure ... be welded low-carbon steel, stainless steel, coated steel, non-ferrous metal wire, sheet, pipe. Pneumatic Spot Projection Welding Machine ProjectTypeRated capacitythe primary ...