JR Diamond Tools Co., Ltd. was established in 2005,Website:http://www.jrdiamondtoolsgroup.com, and was known as Henan Runfa Superhard Materials Factory established in 1992. With more than 20 years of researching and developing on super hard materials, it has developed into one of the leading enterprises of super hard material industry in China. By our strong R&D teams, strict quality control systems, powerful domestic and foreign sales network, our products have covered stone, ceramic, glass, precious stone, diamond, hard metal, and constantly expanded to the photoelectric high-tech fields...