... 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, ... send us drawings or samples for free quoting. stainless steel machining parts