Established in 2000, Gongyi Ou Ya Water Purification Materials Co., Ltd, is a professional manufacturer and exporter that is concerned with the design, development, production of Polyacrylamide PAM, Poly Aluminium Chloride PAC. The development, production and management integrate, has more than 13 years produce experience. We are located in Gongyi, Zhengzhou city, close to Tianjin Xingang and Qingdao port, with convenient transportation access, communication facilities, and enjoy convenient ...