A NUMBER of new coalfields were discovered in Liao-ning, Heilungkiang, Hopei, Kansu, Fukien, Kiangsi, Kiang-su and Kwangtung Provinces by geological workers this year.Meanwhile, China has...
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A NUMBER of new coalfields were discovered in Liao-ning, Heilungkiang, Hopei, Kansu, Fukien, Kiangsi, Kiang-su and Kwangtung Provinces by geological workers this year.Meanwhile, China has...