Specifications 1.The roller with heat treatment is polished, plated with chrome and carbide tungsten. 2.The hardness of its surface reaches ab Characteristics: 1.The diameter of corrugated roller is 260-280mm, Φ310mm, Φ320mm360mm, 430mm. It is made from alloy steel 48CrMo. The roller with heat treatment is polished, plated with chrome, the hardness of its surface reaches above 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 shrinkage ratio of corrugated paper, and ensures long service life.