... Available materials:Brass, mild steel, steel alloy, stainless steel and iron, aluminum, zinc Available diameter:From Φ1mm to Φ120mm, Min ... polish, electrolyte-polish, chrome, zinc plating, nickel plating, aluminum oxidation, ect plating coating.processes:Metal processing includes machining, stamping ... to provide the most stable sourcing channel between us and overseas customers. We want to be who you ...