Shanghai Jingquan Industry & Trade CO. LTD , experiencing 15- years development, has gradually grown up as a diamond tools manufacturer with patent. Located in Shanghai, our diamond tools have spread into many countries in Asia, Europe, America and Africa all over the world. The Diamond tools are used for cutting and profiling granite, marble, sandstone and all kinds of nature stone; for cutting concrete materials and construction materials; for processing the ceramic and porcelain, etc.