... Standard:Aluminum alloy or as your require oem stainless steel casting tube polishingSpecifications1.No defects sand casting+CNC deeper ... partsPrecision turning piecesMold makingMetal Extrusion III. MATERIAL CAPABILITIES Carbon steel, alloy steel, stainless Steel etc.Brass, bronze, aluminum, magnesium, Aluminum alloy, and ... iron etc.PP,PE,ABS,PET,PVC oem stainless steel casting tube polishing