... thrust adjustment function, easy to opera Cost to satisfy *TIG, MMA, CUT , 3 in 1 design. *Electric function exchange, easy to ... .*TIG arc start easy, stable current, suit for various metal. *MMA are start easym stable current.*PlASMA CUT, easy to operate ... thickness:0.3-1.2mmOEM, ODM is also supplied. Inverter DC MMA/TIG/CUT welder(CT-312)