... UL apprvoed MOS technology welding machine New type,high efficiency, economy,practical CT welding machine 1. Suitable for ... machine; 2. Electronic function shift, easy to operate, economic and durable; 3. Good arc initiation for TIG, stable current, concentrated arc, suitable for welding of ... reliable. Technical specifications MMA/TIG/CUT DC INVERTER MACHINECT 312Input Power voltage frequency AC.(single ...