1. The diameter 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 6000mm

weight is less than 8TThe material is 60CrMoV,H13,80Cr2MoV,Gr15,9Cr2Mo, 9Cr2.

barrel hardness less than 100HSD

making process steel ingot-forging-rough machining-QT-2th rough machining

-induction quenching-finished machining-oiling-packing-delivery

straightening roll used in straightening machine