... reaches above SH75. Characteristics:1.The diameter 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, ... SH75.2.The surface of the corrugated roller can be coated with carbon tungsten, which ... makes the roller wear-resisting and highly effective, reduces the ...