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为了满足用户在众多应用场合选择适当的金刚石以获得最佳工具性能和价格比的需求，世界两大金刚石生产商美国GE公司和英国DeBeers公司都在不断完善和推出新的金刚石品牌和各自的金刚石品质指标，以供用中评估和选择。在’％郑州国际超硬材料及制品研讨会上我国业内不少有识之士
In order to meet the needs of users in many applications to select the right diamond for the best tool performance and price ratio, the world’s two major diamond producers GE and DeBeers UK companies are constantly improving and introducing new diamond brands and their diamond Quality indicators for evaluation and selection. In the ’% Zhengzhou International Superhard Materials and Products Seminar in China many people of insight in the industry