... Hard Chrome plating (Dupont formula), chrommantel compact, adhesion strong.Mirror, 3M grinding, Ra0.005, finish14, Precision: temperature difference≤±1°C, ... to 750 mm, and max length is 6000 mm.Raw material is Carbon steel, alloy steel, stainless steel and others. ... accuracy Bridle cylinders . Bridle cylinders 33-2,750*6000mm,for hot fabric,3D pattern,laser engraving,made by Shanghai Donghui Roller