... hardening. Hardness is HRC62 after polishing Inner structure: single-layer, multi-layer screw, Z and other structure.Processing: Chroming, Ceramic, ... or cooling roller, inner structure, inform temperature.Anilox roller, for embossing, coating, inking etc. Donghui Roller’s buildings: ... making high accuracy cylinders Bridle . cylinders Bridle 3,750*6000mm,for hot fabric,3D pattern,laser engraving,made by ...