262190 : ساير 270111 : آنتراسیت 270119 : ساير زغال سنگها 270300 : تورب (همچنین پسمانده تورب((peatlitter) حتی به هم فشرده 270400 : کک و نیمه کک (semicoke) از زغال سنگ، لینییت یا تورب، حتی به هم فشرده؛زغال قرع.
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Constraints: The constraints for demand satisfaction, fuel selection and CO2 emissions reduction are described as follows: a) Demand satisfaction This constraint simply says that the total cement produced should be greater than or equal to the demand. b) Fuel selection Each unit "i" has to run with only one fuel f.