... 3,Flatting number: 9 sets4,Roll forminga,Type: GY160b, Rack: cast iron torii type, material:HT200c, Roll forming rack: 12 setsd, ... The diameter of the roller axis:φ70mm, roller surface:400mmMaterial: 40Cr quenching treatment HB280e, Drive type ... roller rack: 4 sets5, Adjust part: Turkey emendation type(three-dimensional emendation)6, cutting-to-lengthHydraulic press cutting ...