... parts PRODUCT SPECIFICATION Weight/kgHigh / mmOutside round diameter / mminside diameter/ mm0.172.0 Φ9.1 Φ8.1Place of originSuzhou, China ... casting/machining solution with fairly good price.The production line now include: Aluminum parts processing ,Green sand cast, Resin sand cast, ... , Auto parts, Valve and pump parts, Hardware fittings etc.Material: Gray, Ductile iron, Cast steel, Alloy steel, Copper, ...