... stainless,aluminum alloy 2.Finish:zinc platd,polish cnc stainless steel machining precision part Strictly quality control by 100% ... steel, aluminum alloy, copperProcedurewelding,stamping,cutting,punching,bending,grinding,machining,threadingSurface finishingzinc plating, hot dipped galvanized, powder coat, ... cutting machine, rolling machine and so on. cnc stainless steel machining precision part