... 15 year experience 5:Good quality but lower price WSE WELDER/WElDING MACHINE, ALUMINUM WELDERDescriptionDescription♦ Adopt inverter technology with AC ... appearance,simple electric circuit.♦ Combining AC and DC in one welder,no noise. ♦ Square wave power,stable current,easy ... .♦ High duty cycle,can work continually under big current. Suit for aluminum and alloy, carbon steel, stainless steel, copper ...