We are ISO 9001 certified professional manufacturer of casting
products (ductile iron, gray iron casting & steel casting) in
North China ,with process of sand casting(resin casting, shell
casting)and investment casting.
Mainly we manufacture:
(1) Austempered Ductile Iron(ADI) casting: accessories for railway,
locomotive, machine, vehicle and heavy automotive industry. E.g.
suspension arm, control arm, sprocket, roller, bush,etc.with unit
weight from 1kg to 200kg.
(2)Ductile iron ...
Hebei Zhongqing Machinery Co.,Ltd.