... 3M grinding, Ra0.005, finish14, Precision: temperature difference≤±1°C, thermal deformation≤0.01mm, concentricity≤0.001mm, straightness ... Heating RollerCooling Roller1. HRC55~58.2. Inner structure.3. Precision: temperature difference <= 1°C, heating transform <= 0.02mm, concentric ... cylinders Bridle . cylinders Bridle 3,750*6000mm,for hot fabric,3D pattern,laser engraving,made by Shanghai Donghui ...