Diamond grinding wheel is the development of the early seventies and applications, mainly for non-ferrous metals materials processing.
金刚石砂轮是七十年代初开始研制和应用的，主要用于非铁族金属材料的加工。
Diamond grinding wheel is the development of the early seventies and applications, mainly for non-ferrous metals materials processing.
金刚石砂轮是七十年代初开始研制和应用的，主要用于非铁族金属材料的加工。
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