... with three functions including MMA, TIG, CUT. Little spark, beautiful weldingseam,energy saving. CT 520 DC Inverter MMA/TG/CUT welder DC machine ... inverter technology,small size and light weight, easy to carry2.Creative, effective and low costThree functions in one machine,TIG welding, MMA welding ... APPROVED,OEM ACCEPT,DIGITAL DESIGN ACCEPT. 7.LIGHT AND SMALL ,HF ARC.digital display,foot control padal8 ...