China Factory Screw End CF8 3PC Butt Weld Ball Valve Flanged 3-pc ball valves priceAPI6D & ISO9001 Product Description Company Information Cangzhou Houde Stainless Products Co., Ltd. is located in Cangzhou city Hebei Province. The company introduces the advanced silicon sol lost wax precision casting process, well appointed casting equipments, high-precision CNC machines and machining center. Contact Us