... experiences 4. Costomized parts Features:1. Various material: iron, aluminum alloy,alloy steel, brass2. Process: sand casting, investment casting ... , permanent mold casting3.Tolerance: +_0.05mm4. Surface treatment:electro polish, chrome plating, sandblasting, nickel plating, powder coating5. Packing: ... , metal stamping , precision turning, casting and forging. Aluminum Casting Parts for OEM Service