... 2.High frequency arc start design 3.Reasonable price WSE Series AC/DC Pulses Square-Wave Argon-Arc Welding MachineFeatures: ... steel, stainless steel, alloy,steel, copper, titanium, etc 2. WSE series digital welding machine welding thickness is 0.3-10mm3.DC welding ... steel, stainless steel, alloy,steel, copper, titanium, etc. 2. WSE series digital welding machine welding thickness is 0.3-10mm3.DC welding ...