... 5.5mm SWRH82B,SWRH77B,SWRS82B, H08A,ER70S-6,SWRH62A,SWRH72A,SWRH72B ER70S-2,ER70S-3,ER70S-4,ER70S carbon steel wire rods Coil 5. ... 5mmSWRH82B,SWRH77B,SWRS82B, H08A,ER70S-6,SWRH62A,SWRH72A,SWRH72BER70S-2,ER70S-3,ER70S-4,ER70S ... is mainly used to produce various welding rod. While ER70S-6 is mainly used to produce various kinds of CO2 gas ...