短語詞組短語Output Of Metallurgical Coal 輸出冶金煤metallurgical coal concentrate 煉焦精煤Buy metallurgical coal 冶金礦產(chǎn)Particularly Mining Metallurgical Coal 尤其開采冶金煤metallurgical coal for steel -making 鋼鐵冶煉用煤Coal for metallurgical coke 冶金焦用煤 返回 metallurgical coal