... area. Activated CarbonSymbolClassification and GB No.ApplicationLGranular AC from coal for desulfurization GB/T7701.-1997To be used for removal of ... , ethers, gasoline, chloroform, carbon tetrachloride, etc.ZGranular AC from coal to be used as catalyst carrier or catalyst GB/T7701 ... or catalyst carrier in synthetic industry.JGranular AC from coal for water purification GB/T7701.-1997To be used for ...