... door part 1.Material:Metal(SS,Aluminum) 2.Precision CNC Turning,Drilling,Boring,Milling stainless steel Spherical door partSpecificationsCNC Turning part 1.Material:Metal(SS,Aluminum ... , Aluminum alloy, and zinc alloy etc.Grey iron, ductile iron, cast iron etc.PP,PE,ABS,PET,PVC stainless steel Spherical door part