Article 53 The quality of coal supplied to customers by coal mining and coal trading enterprises shall meet the national or trade standards. The quality of a specific type of coal shall match its grade and price.
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- 第五十三條 煤礦企業(yè)和煤炭經(jīng)營(yíng)企業(yè)供應用戶(hù)的煤炭質(zhì)量應當符合國家標準或者行業(yè)標準，質(zhì)級相符，質(zhì)價(jià)相符。
