... reputation among our customers, Kunshan Hongda Heavy Forging Co., Ltd. was founded in 1987, and now boasts factory facilities ... of forgings.The main forgings are Industries of petroleum machinery, engineering, harbor machinery, gear, reducer machinery, hydraulic machinery and ... In recently years, Kunshan Hongda Heavy Forging Co., Ltd has successfully developed the forgings with 42CrMo4 matetial for the ...