... apprvoed MOS technology welding machine New type,high efficiency, economy,practical CT welding machine 1. Suitable for TIG,SMAW, cutting, ... 3. Good arc initiation for TIG, stable current, concentrated arc, suitable for welding of arious metals; 4. SMAW for ... and reliable. Technical specifications MMA/TIG/CUT DC INVERTER MACHINECT 312Input Power voltage frequency AC.(single phase) 110V~240V±15% ...