SHANDONG JOY-RING CHEMICAL CO., LTD

Since 1998, Shandong Zheyuan Chemical Co., Ltd. has only focused on the production, research and development and sales of fluorescent whitening agents and their intermediates, and has domestic advanced production bases and testing centers. Main o-aminophenol, o-nitrophenol, tert-butyl phenol and other pharmaceutical intermediates; plastic special fluorescent whitening agent, printing and dyeing sp...