Application: All Kinds of Ductile Cast Iron Pipe Production Material:21CrMo10, 20CrMo, or Customized Specification:I.D 50mm-2600mm, Max. L 12000mm Key Customers: GE-Energy,Siemens,Alstom,Hitachi,SMS-Siemag,Danieli,Vestas,Andritz,Howden,TDPS,Sandvik,Thyssenkrupp,U.S.Pipe,PAM,Suzlon,ABB,Dresser-Rand,Electrotherm,etc.