... ER70S-6)is made from excellent 70S-6 steel by drawing, straightening and copper coating.2,ER70S-6 is ... it is mainly for butt and fillet welding structures made by shipping steels and low alloy steels ,suchasships ,containers ... ,vehicles, engineering &construction machinery ,bridges and so on. CO2 GAS SHIELDED WELDING WIRETypeChina National Standard (GB)InternationalStandardChemical Composition of ...