Seamless Rolled Rings, Wind Turbine Tower Flanges, Mechanical Engineering Forgings manufacturer / supplier in China, offering 15CrMo5, 16crmo4, Scm415, 15CrMo Seamless Hot Forging Rings for Heavy Industry, CNC Turning and Drilled Holes 42CrMo4 Hot Forged Ring, Big-Dimensioned Hot Forged Flanges for Heavy Industry and so on.