Casting, Forging, CNC Machining manufacturer / supplier in China, offering Grey/Gray/Nodular/Ductile Iron Casting with Precision CNC Machining Process for Oil Drilling Machinery OEM Parts, China ISO 9001 Foundry Custom Metal Casting for Train/Railway/Locomotive Components Heavy-Duty Trailer/Tractor/Truck Parts, Custom Building/Construction/Mining/Farm/Agricultural/ Machinery/Truck/Tractor Metal/Iron/Steel/Alloy Parts Made by China OEM Metal Foundry and so on.