G&B Seven Limited was established in 1998. The founder Mr. William Guo developing phosphorus copolymerized flame retardant CEPPA and phosphorus blended flame retardant AP-PSI depending on his research results in college which are applicable to all kinds of fibers and fabrics, is the pioneer in this industry. Since 2003, we have cooperated with the famous chemistry college of Sichuan University and developed photoinitiator, phenolic antioxidant and foaming agent series products. In particular, ...