... , 3M grinding, Ra0.005, finish14, Precision: temperature difference≤±1°C, thermal deformation≤0.01mm, concentricity≤0.001mm, straightness≤0. ... HRC55~58.2. Inner structure.3. Precision: temperature difference <= 1°C, heating transform <= 0.02mm, concentric <= 0.005mm.Teflon Roller1. ... high accuracy Bridle cylinders . Bridle cylinders 0526-1,750*6000mm,for hot fabric,3D pattern,laser engraving,made by ...