... autoterminal-hhc.com, we export advanced customized switch galvanized iron bolt, welcome to contact us.product specificationsItem.NOHHC- ... Brass, Al, Copper, etc.Surface treatmentZinc, Copper Nickel, Chrome, Tin, etc.Screw Head StylesFlat, Binding, Oval, Pan, Round, Button ... customer's demands)2. Surface finish: Zinc, Nickel, Chrome, Tin, Silver, Copper, Gold Plated, Painting, Anodizing Heat treatment, ...