Shouguang xinsheng chemistry CO.,LTD the only one enterprise which specializes in poducing thiourea dioxide,formamidine sulfinic acid,thiourea and other series.products ,have the selfimport and export,operating right the quality of our products completely,achieves the standard of the export and the products are exported to Amdrica,japan.korea.europe and more than 10. countries and regions receiving customer's high praise ,at preseat,the output is 5000t/y.the quality indexes of thiourea dioxide have reachde the standard.