... treatment: Galvanization,plaint,power coating ,brass,polishing and more 5.Performace: Pricision metal stamping, other machining ... : Steel, brass Aluminum alloyStrong in-house tooling designing and tooling making abilityProcess : stamping, punching, bending, welding, deep drawingSecondary ... foundry, alloy castingAbout us:Our factory has more than 40 advanced and perfect mechanical equipment, has a ...