The use of coal is extensive and can be summarized as being of three main uses according to the purpose of its use: coal for power, coal for charging, coal for coalification, mainly coal for gasification, coal for low-temperature dry distillation, coal for hydrogen liquefied, etc
Ten digits represent the size of the volatilization, e. G., the volatilization of non-smoking coal, the volatilization of lignite, the volatilization of lignite, the 10 digits of lignite, the 10 digits of pyrofoal, in the range of 1 to 4, and the number of bits of pyrotechnic coal, the larger the number of bits, the stronger it is, the 6-bit number of smoke coal, all of which are fatty coal or gas-composed coal with a volume of y thickness greater than 25 mm, and all of the 1-bits of pyrocoon, all of which are non-colate, e. G., poor, non-coal and long. Smoke. Coal
