... 1.machining parts, 2.CNC proscess 3.silica casting 4.allowance:+/-0.05mm 5.China, Cangzhou Construction Machinery Parts precision casting,silica casting Specifications ... : Machining PartsModel No.: machining parts, CNC process, silica casting Size :1"Material :Carbon Steel, Alloy Steel, Stainless ... a small amount of samples machining parts, CNC process, silica casting, +/-0.05mm,China