Guangzhou Xirui Chemical Co., Ltd. Our main products: Anhui private insurance powder into dyeing, in a carved white blocks (pink), hydrogen peroxide, hydrofluoric acid, (import / domestic) beads alkali, soda ash, polypropylene acid ammonium ions, sodium metabisulfite, sodium sulfite, sodium chloride, acetic acid, phosphoric acid, caustic soda, trisodium phosphate, sodium metasilicate pentahydrate many a proxy products, high quality supply in Guangdong Province, and the country. Welcome to inquire, Li Chaohai PS: Formaldehyde in the printing industry as a discharge agent and a reducing agent, the production of indigo dyes, vat dyes. Also used in the polymerization of synthetic rubber, sugar, and vinyl compounds.