... Southeast Asia, Mid East ,North America.ACCESSORIES:With welding torch,earth clamp,mask,brush,0.45kg flux wireCERTIFICATE: CE,ROHS,GS,ISO9001 ... welding uses an inert shielding gas, which does not participate in the welding process, while MAG (metal active gas) welding ... employs an active shielding gas that participates in the welding process.Usually the shielding gas contains active carbon ...