NH WORLD TRADE CO. was established in 1989 in Hong Kong engaging in industrial diamond, diamond micron powder and diamond tools business ever since. Our diamond micron powder has been used in electronics, ceramics, glass, optics, stone, mould and gem stone industries in U.S.A, Japan, Europe and Asian countries. Due to the demand of the precision industries, the NH Superabrasives(SZ) Ltd. was set up in 1998, a factory specializing in diamond micronizing in Shenzhen, China. We have accurate, fast processing system and other instruments for testing and quality control. Our micron powder has been widely accepted in the world market. But our technical innovation has never been stopped.