Jiangsu Niqi Diamond Tools Co., Ltd. Has been constantly updating and improving grinding materials in order to meet the development requirement for clean, effective and safe grinding industry. Diamond brazing technology is transformed from scientific research achievements from colleges and universities, and complete sets of special equipment has been purchased to develop and manufacture all kinds of grinding products which are used to grind, cut and open hole for castings, metals and stones. Because of their minor loss in regular shape, they have provided strong support for industrial automatic grinding&cutting and achieved good reputation in the actual use .