... 6000,Ra0.01,0.001mm for hot fabric,plastic film/sheet/plate,aluminum foil,cigarette paper. Bridle cylinders , Shanghai ... , hardening. Hardness is HRC62 after polishing Inner structure: single-layer, multi-layer screw, Z and other structure.Processing: Chroming, Ceramic, Hard ... Pattern is pyramid,comby,dot,mess dot,diamond,hexagon,sloping line and others.Heating RollerCooling Roller1. HRC55~58.2. Inner ...