... stainless steel,steel 3.Machining,milling,grinded,polished. 4.Tolerance:+/_0.01mm Milling parts & CNC machining parts 1,Material: Brass, Copper, Stainless steel, Carbon steel ... , Aluminium etc 2,Machining process: CNC turning, Milling, Drilling, CNC lathe etc 3,Surface treatment ... drawings or samples for free quoting. stainless steel machining parts