短語詞組短語Output Of Metallurgical Coal 輸出冶金煤metallurgical coal concentrate 鍊焦精煤Buy metallurgical coal 冶金鑛産Particularly Mining Metallurgical Coal 尤其開採冶金煤metallurgical coal for steel -making 鋼鉄冶鍊用煤Coal for metallurgical coke 冶金焦用煤 返回 metallurgical coal