... ,ROHS,UL apprvoed MOS technology welding machine New type,high efficiency, economy,practical CT welding machine 1. Suitable for TIG,SMAW, ... for TIG, stable current, concentrated arc, suitable for welding of arious metals; 4. SMAW for 2.5-3.2 welding ... of variety of metallic sheets; 6. Compact, easy to install, conventient to move; 7. Crafty circuit design, simple structure, safe and reliable. Technical ...