钢磨 meaning in Chinese

metal burr
steel

9 grinding and cleaning of alloy steels , stainless steels and nonferrous metals shall be done only with tools that will not leave detrimental deposits on the base metal ; aluminum oxide or silicon carbide grinding wheels and austenitic stainless steel wire brushes shall be used
合金钢、不锈钢和非铁金属的研磨、清理所用工具不能在母材金属表面上留下有害残留物，可为铝氧化物或金砂钢磨轮、奥氏体不锈钢丝刷。