... 3.OEM is available 4.Plastic panel TIG/MMA/CUT CT3121. Suitable for TIG,SMAW, cutting, exclusive product, multi functions ... operate, economic and durable; 3. Good arc initiation for TIG, stable current, concentrated arc, suitable for welding of arious ... , simple structure, safe and reliable. Technical specifications MMA/TIG/CUT DC INVERTER MACHINECT 312Input Power voltage frequency AC.(single phase) ...