... is copper coated solid welding wire. 2. Used for vehicles, construction, shipbuilding, bridge, sheet metal, pipe welding. 1. Product InformationChemical Composition ... Coated Solid welding wire 1.2 mm ER70S-6 is used for 500MPa carbon steel and low alloy steel, suchas ... a forty-year- history of welding materials producing experience. The ER70S-6 CO2 welding wire, produced by using advanced technology ...