... Copper; Brass; Bronze; Carbon steel, carbon structural steel, free cutting steel, cold heading steel, cold rolled steel, alloy steel, bearing steel, stainless iron, stainless steel; ductile iron etc.4FinishPlainPassivated; ... .6TypeDrawing and stampingStamping - Rolling, forming, punching, bending, deep drawing.Metal fabrication (machining) - Wire EDM, drilling, turning, milling, grinding.Welding - ...