... manufacture in making rollers. Steel Roller’s DetailsSteel Roller, Shanghai Donghui Roller is an expert. The following is ... Roller. If you have extra question, let us know.Materials: 20#, 45#, forge alloy steel (42GrMo,38GrMoAI), heating treatment and mechanical ... the world. Main Products are Embossing Roller, Anilox Roller, Mirror Roller, Heating Roller, Cooling Roller, ink prooferetc.Max diameter is ...