Tianjin Henghaixin International Trading Co.,Ltd is the one of the largest chemical factories in Asia， which is mainly engaged in the production of chemical raw materials, processing of incoming materials, domestic sales and export trade. Our products are strictly manufactured in accordance with CIQ, BV, FDA, NSF, ISO 9001:2008, SGS, HALAL certification standards. It has been 25 years since 1995 when our products sold well all over the world.Frequently sold chemical products are very rich, including white oil, caustic soda, soda, sodium chloride, calcium chloride, sodium thiosulfate, sodium pyrosulfite, melamine, sodium triphosphate, sodium phosphate, sulfonic acid, acetic acid, formic acid, oxalic acid, p-toluene sulfonic acid, sodium p-toluene sulfonate, layered composite sodium silicate. Sodium dodecylbenzenesulfonate, isobutanol, melamine, citric acid, sodium humate, trichloroethylene.