PTFE Micro Powder, Food Ingredients, Plastic Additives manufacturer / supplier in China, offering Non Halogen Flame Retardant Zinc Borate Anhydrous CAS: 12767-90-7, Zinc Borate 99%/CAS No. 1332-07-6/Flame Retardant/2ZnO. 3b2o3.3.5H2O, Eco-Friendly Ammonium Polyphosphate Fire Retardant Chemical and so on.