... .0mm,1.2mm,1.4mm,1.6mm Copper Coated CO2 gas shielded welding wire Certificate:CCS,BV,GL,KR,NK,ABS, ... CO2 Gas Shielded Welding Wire (AWS ER70S-6) is made from excellent Ho8Mn2SiA steel by drawing, straightening and copper coating.. Features: ... welded automatically or semi-automatical. Application: low carbon steel and low alloy steel, rolling stock, container, engineering machinery, and pressure ...