cnc metal precision part 1. Material:carbon steel,stainless,aluminum alloy 2. ... parts, machining parts, mouldsMaterialcarbon steel, stainless steel, aluminum alloy, copperProcedureCutting,stamping,punching,threading,bending,welding,grinding,machining,surface finishSurface finishingzinc plating ... cutting machine, hacksaw cutting machine, rolling machine and so on. cnc metal precision part