ⅡA、ⅡB、ⅡC | Methane, ethane, propane, styrene, benzene, toluene, xylene, acetone, carbon monoxide, phenol, cresol, dichloroethylene, chlorobenzene, ammonia, propyne, acrylonitrile, hydrogen cyanide, coke oven gas, hydrogen Wait | Butane, cyclopentane, propylene, ethylbenzene, isopropylbenzene, methanol, ethanol, propanol, butanol, cyclohexanone, methyl formate, ethyl acetate, dichloroethane, vinyl chloride, methylamine, Ethylene, acetylene, etc. | Pentane, hexane, cyclohexane, turpentine, naphtha, petroleum, kerosene, fuel oil, gasoline, pentanol, hexanol, chlorobutane, dimethyl ether, crotonaldehyde, etc. | Ethyl methyl ether, acetaldehyde, dibutyl ether, diethyl ether |