Zhengzhou Zhengda Industry Aluminum Co. LTD is a private enterprise combined with production and marketing service. The company was found in 1991,covering an area of 26 Square Kilometers, and has established a long-term technical cooperation with Light Mental Research Institute of China. The company is one factory that have 20 years’history for manufacturing series of aluminum hydroxide, with professional technology and management(ISO9001) and high-strict inspection system, our products are ex...