jinhe sodium hydrosulfite factory co.,ltd, the largest manufacture of sodium hydrosulfite in China. With an annual output of forty thousand tons of sodium hydrosulfite. the products are mainly exported to more than 40 countries and regions, such as Africa, Southeast Asia, America and Europe. Our main products including: sodium hydrosulfite,sodium metabisulfite. Sodium hydrosulfite Specification ï¼?85%ã??88%ã??90%. Packing:15kgã??20kgã??25kgã??50kgã??100kgã??200kgã??900kg net new iron drum.