... is HRC62 after polishing Inner structure: single-layer, multi-layer screw, Z and other structure.Processing: Chroming, Ceramic, Hard ... .Heating RollerCooling Roller1. HRC55~58.2. Inner structure.3. Precision: temperature difference <= 1°C, heating transform <= 0.02mm, concentric ... 0.001 mm.Heating roller or cooling roller, inner structure, inform temperature.Anilox roller, for embossing, coating, inking ...