... ,spring steel,aluminum,brass finish:zinc,nickel use: electronic/equipments Precision stamping partsSpecification:1. material: stainless steel,carbon steel,aluminum,alloy steel ... ,iron,,zinc allloy,aluminum alloy,brass2. precision machine: punch press 5 to 300 tons, boring machine, laser ... you.Products are OEM for your reference, not for sale Stamping electric accessory