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