Hangzhou Riwa Chemicals Co., Ltd is a leading pigment manufacturer in China, which manufactures organic, inorganic, azo, lake, toner pigment and solvent dyes. Since the year of 1987 when it was established, we always hold the product quality as our life line. Meanwhile, we are all the time doing the  best to provide our customers the best price. We are strong in products like pigment red, yellow, orange, blue, green and violet. For more information, pls visit 3w.riwachemicals.com If you have a interest, pls mail to ritta(at)riwachemicals.com and let me know what I can do for you.