WSE 250 Welding machine 1.AC-DC dual-use 2.High frequency arc start design 3.Reasonable price WSE Series AC/DC Pulses Square ... ,steel, copper, titanium, etc 2. WSE series digital welding machine welding thickness is 0.3-10mm3.DC welding for stainless steel, alloy ... ,steel, copper, titanium, etc. 2. WSE series digital welding machine welding thickness is 0.3-10mm3.DC welding for stainless steel, alloy ...