... arc start design 3.Reasonable price WSE Series AC/DC Pulses Square-Wave Argon-Arc Welding ... alloy,steel, copper, titanium, etc 2. WSE series digital welding machine welding thickness is 0.3- ... , carbon steel, copper and other color metal, AC welding for aluminum4.Remote foot pedal controller, adjustable ... ,steel, copper, titanium, etc. 2. WSE series digital welding machine welding thickness is 0.3-10mm3 ...