... construction, building, bridge, sheet metal, pipe welding. 2. Used for Welding low-allay steel. 1. Product Information Chemical Composition ... has a forty-year- history of welding materials producing experience. The ER70S-6 CO2 welding wire, produced by using advanced ... , vehicles, construction, shipbuilding, bridge, sheet metal, pipe welding. All the products are complimented. Thanks for choosing our ...