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美国克里斯坦森金刚石制品公司今年四月来华进行技术交流，曾介绍了细粒金刚石强度的检验方法、钻头胎体耐磨性的测定方法及天然金刚石的抛光处理。这些方法对国内有关研制单位有借鉴之处，特整理简单介绍如下。
American Christensen diamond products company to China in April this year for technical exchanges, had introduced the test method of the strength of fine diamonds, the determination of the wear resistance of the drill bit and natural diamond polishing. These methods have reference to the relevant domestic research units, special treatment is briefly described below.