... free cutting steel, cold heading steel, cold rolled steel, alloy steel, bearing steel, stainless iron, stainless steel; ductile ... arc welding, spot or seam weldingForging, sand casting, die casting, investment casting, injection molding;Assembly etc.7RoughnessRa 0 ... arc welding, spot or seam weldingForging, sand casting, die casting, investment casting, injection molding;Assembly etc.7RoughnessRa 0 ...