... after polishing Inner structure: single-layer, multi-layer screw, Z and other structure.Processing: Chroming, Ceramic, Hard Chrome plating ... and others.Heating RollerCooling Roller1. HRC55~58.2. Inner structure.3. Precision: temperature difference <= 1°C, heating transform <= 0. ... in making high accuracy cylinders Bridle . cylinders Bridle 3,750*6000mm,for hot fabric,3D pattern,laser engraving, ...