We the DFN mainly engaged in huge ring forgings and free forgings, such as wind power tower flanges shafts, slewing bearing, gear increaser disks, nozzles, valve balls bushes ect. with an annual production capacity of 120, 000 tons.The maximum diameter our ...

Homed in Qingzhou, one of the ancient Nine States China, Shandong Qingneng Power Co., Ltd., as an enterprise jointstock system, which was born our merging with Qingzhou Lineng Petroleum Machinery ranks amongst major manufacturers machinery manufacturing ...