Shanghai Dilong International trades in the fields of organic and inorganic fluorine chemicals. Xinxiang Yellow River Chemical Industry Co., Ltd, founded in 1992 as headquarters has become a leading fluoride manufacturing base in China. Product list: potassium fluoride hydrogen fluoride hydrofluoric acid potassium hydroxide sodium fluoride fluorosilicic acid aluminum fluoride ammonium fluoride cryolite organic and inorganic fluorine chemicals