... 3. Lower price 4. 4-years manufacture experience Dongguan Jiuwei Diamond Tools Co., Ltd. Locates in Dongguan, Guangdong province, China (Mainland ... in April 2008. We are a professional manufacturer of various diamond tools.nitride(CBN) grinding wheels; from the bonds, four types ... our company, such as the drilling tools, PG films, cutting blades and so on.Our company has the advantages of very ...