CR GEMS Superabrasives Co., Ltd. is a part of the CR GEMS Diamond group, it locates in Xinzhuang High-tech industrial park, Shanghai. CR GEMS manufactures and provides excellent quality superabrasives, mainly synthetic diamond, CBN, PCD and PCBN. Based on its consistent quality and professional solution, CR GEMS products receive wide popularity and high recognition in Asia, Europe, America and other regions too. CR GEMS strictly controls production with ISO9001: 2008 quality management syste