Fire Retardant, Smoke Suppressor, Fungicide etc manufacturer / supplier in China, offering Antimony Trioxide/ PVC/ PVC Chemical/Building Material /Flame Retardant Zinc Borate Zb2335, The World; S Largest Producer of Zinc Borate Zb2335, The World; S Largest Producer of Zinc Borate ----Shandong Wuwei and so on.