Biography of Huayang Chemical Co., Ltd. Hangzhou, Zhejiang Chuanhua Group Co., Ltd. and Shenyang Chemical Research Institute, a joint venture, specializing in the production of optical brighteners manufacturers, established in 1998, after a brief few years of development, has begun to take shape, four series of whitening products available: plastic with fluorescent brighteners, fluorescent whitening of textile printing and dyeing, paper and washed with optical brighteners such as fluorescent brighteners. In 2001 the company passed the ISO9001 quality system certification, product not only been well received in China, but also exported to more than ten countries and regions abroad, with some well-known whitening agent of foreign manufacturers cooperate to further improve their skills and c.. (more>>)