Weifang Zhongheng Chemical Co.Ltd.,(www.zhonghengchemical.com)the wholly-owned subsidiary of Shouguang Xintian Chemical Co.,Ltd.(www.xintianchemical.com)(Shouguang Xintian Chemical Co.,Ltd. is one modern and professional enterprise which produce Sodium Metabisulfite with the annual production capacity of 150000 metric tons) started in 2006, located in Binhai Economic Development Area, Weifang City, Shandong Province with a registered fund of CNY 5 millions，is a professional manufacter of Sodium metabisulfite，flake caustic，Brominated flame retardants . Company products:Sodium Metabisulfite, Bromine flame retardant agents and other chemicals, meanwhile distribute kinds of water treatment chemicals with reasonable structure and numerous in variety. There is a professional technolo..