precision turned machining parts 1.material:carbon steel,stainless ... stainless steel, aluminum alloy, copperProcedureCutting,stamping,punching,threading,bending,welding,grinding,machining,surface finishSurface finishingzinc plating, hot dipped galvanized, ... machine, Welding robot, powder coat finishing line ,plasma cutting machine, hacksaw cutting machine, rolling machine and so on. precision turned ...