... ,sheet metalMaterials : Steel alloy , stainless steel , carbon steel , aluminum , zinc and brassSurface treatment : no burr , nickel plating , zinc plating , anodize , powder ... priceAutomatic processCertification : ISO 9001-2000High-quality guarantee and RoHS complianceIn-house tooling design and manufacturingCustomized designs and sizes are welcome carbon steel , zinc plated , stamping , bending ...