Qingzhou Guanghui Chemical Factory in Shandong Province was established in 1998, specializing in the production of industrial-grade trisodium phosphate, disodium hydrogen phosphate, sodium dihydrogen phosphate, pentasodium phosphate, potassium dihydrogen phosphate, potassium hydrogen phosphate, sodium hexametaphosphate, and sodium acetate. We are a designated manufacturer for the phosphorus chemical and phosphates series in Shandong Province, providing one-stop service for production, supply, and sales.