Through product testing by SGS white smoke, white smoke ultrafine, superfine white carbon, ultrafine silica, chemical formula SIO2, white powder (powder), the main used in rubber, rubber outsole, silicone production, TPR-TPE -TPU production, high-grade paint production, the fineness of 120 mesh to 2500 mesh from all sales, ultra-fine silica silica, ultra-fine silica. Appearance white yuan amorphous powder. Moisture less than or equal to 0.08%, ash-free, sieve residue (2000 mesh) <0.01% silica> 95%, PH value of 8-10, the iron content <0.001% copper content <0.0005% chlorine compounds containing <0.01% lead oxide <0.005% sodium chloride <0.05%. Monthly 5800 tons of white carbon black. Main production for glass, plastic, silicone production, the whiteness, the fineness of more than 2,000 projects, greater than 99% of silicon, used to fill the role of master. Welcome to the new and old customers purchasing cooperative,