... of corrugated roller is Φ260mm, Φ310mm, Φ320mm,Φ360mm, Φ430mm. It is made from alloy steel 48CrMo. The roller with heat treatment ... is polished, plated with chrome, the hardness of its surface reaches ... 2.The surface of the corrugated roller can be coated with carbon tungsten, which makes the roller wear-resisting and highly effective, ...