... treatment of the products. Furthermore, the company can independently design, produce and machine related moulds.At present, the company ... sleeves, rings, flange, steel cylinders, crankshafts, blocks and isoforms. Part of the products have been sold to international market such ... In recently years, Kunshan Hongda Heavy Forging Co., Ltd has successfully developed the forgings with 42CrMo4 matetial for ...