... from 80mm to 300mm 2.The length is less than 6000mm 3.The material is 60CrMoV,H13,80Cr2MoV,Gr15,9Cr2Mo, 9Cr2 The ... diameter from 80mm to 300mmThe length is less than 6000mmweight is less than 8TThe material is 60CrMoV,H13,80Cr2MoV,Gr15,9Cr2Mo, 9Cr2 ... machining-induction quenching-finished machining-oiling-packing-delivery straightening roll used in flattening machine