Riwa was established in 1987,Website:http://www.riwachemical.com, Top quality, competitive price and perfect service are our tenet, Riwa has a strong team on manufacturing, dealing in, researching and developing. Riwa has perfect testing instruments, strict supervision and quality control. We has gotten the high reputation in the field. Our plastic pigments, ink pigments, organic pigments, paint pigments products are popular all over the world with high quality, competitive price, fast delivery and efficient service.