辊由高级工具钢制成，经过热处理，洛氏硬度超过60，并经镀铬和镜面抛光处理。

辊由高级工具钢制成，经过热处理，洛氏硬度超过60，并经镀铬和镜面抛光处理。的英文翻译

基本释义

• Rolls machined from high-grade tool steel, which has been treated to a hardness of over 60 Rockwell C and hard chromed, precision ground as well as polished to a mirror surface.