Shandong Rich Billows Group Limited was established in 2004, which was located in high-tech development zone of Zibo city, Shandong province. After many years? hard work, our product system changing from single Inorganic calcium salt moving into three product systems such as BFRs, Inorganic fluoride salt, Inorganic calcium salt and Medical&Pharmaceutical Intermediate. Now we are a set of research and development, production, domestic and foreign trade into an integrated high-tech ...