Shandong Wanshan Chemical Co. Ltd., belonging to Shandong Wanshan Group, was established in 2004, with total investment of 420 million RMB ,covering more than 253,000 square meters. The factory is located in Changle County, 10km east to World Kite Capital Weifang city, 150km away from Qingdao Port. We are professional in naphthalene series water-reducer, short for FDN or PNS. After years of development, more than 700 employees work here, and annual sales volume is over 2 billion RMB.. The mainly product is βnaphthalene sulfonate formaldehyde condensation (FDN for short in bellow), owning FDN-A,FDN-B,FDN-C 3 kinds. The annual output is over 300,000 MTs, which takes the first place in China. In domestic market, our products take up 30% market. And in global market, our products have been sold to Europe, North America, East-south Asia and Middle East. The concept of Product Quality is Enterprise's Life has run into everyone's heart deeply, and our belief is serving customers from all over the world sincerely. We all welcome friends from all over the world to visit our factory for cooperation based on mutual benefits.