... us know.Materials: 20#, 45#, forge alloy steel (42GrMo,38GrMoAI), heating treatment and mechanical processing, hardness ... wallpaper, aluminum foil, glass and so on.Steel Roller’s Photos: Donghui Roller’s main Products ... is 6000 mm.Raw material is Carbon steel, alloy steel, stainless steel and others.Embossing roller, laser engravuring, ... fabric,3D pattern,laser engraving,made by Shanghai Donghui Roller