Malleable Iron Pipe Fittings Hebei Jianzhi Casting Group Co., Ltd is one of the main Chinese manufacturers of malleable iron fittings since 1982. Process focused quality management with "Jianzhi" brand that has been one of the 鈥淐hinese Well-known Trademark"Quality malleable iron pipe fitting from "Jianzhi"with cost effective installations. More than 4,000 employees, 300 more experts,engineers...