片语
Particularly Mining Metallurgical Coal尤其开采冶金煤
caking coal[矿物] 粘结性煤;炼焦煤
Buy metallurgical coal冶金矿产
sintering coal炼焦煤;粘结性煤
Coal for metallurgical coke冶金焦用煤
metallurgical coal concentrate炼焦精煤
Output Of Metallurgical Coal输出冶金煤
metallurgical coal for steel-making钢铁冶炼用煤