Hangzhou Hongyan Pigment Chemical Co. Ltd. is a company that provides Pigment, Chemical engineering and more. Hangzhou Hongyan Pigment Chemical Co. Ltd. is headquartered in China Zhejiang Sheng. Hangzhou Hongyan Pigment Chemical Co. Ltd. was founded in 1998. Hangzhou Hongyan Pigment Chemical Co. Ltd. has a total of 28 patents