tig/mma dc/ac inverter pulse welding machine TIG315AC/DC 1.welding style :DC/ TIG welding 2.4T control,ease of long-weld ... short,stable arc; 2.super cleaning ability of oxide film, cleaning width continuously adjustable,bright and beautiful welds;perfect ... voltage,over current, over heating, over load,phase auto-protection to ensure welding safty, durable and reliable; 2.EMC electromagnetic ...