溶剂精炼煤法 solvent refined coal process

炼焦煤 [冶] [矿业] coking coal ; baking coal ; crozzling coal ; sintering coal

溶剂精炼煤 solvent refined coal

炼焦用煤 coking coal ; coal for coking

非炼焦煤 dead coal ; non-coking coal ; coking coal

炼焦水煤气 coke water gas

洗净炼焦炉煤气 purified coke oven gas

炼焦煤价格指数 SHCNCCI

炼焦煤气 coke-oven gas