Article 30 coal mining enterprises shall exercise strict supervision, inspection and control of coal product quality. Such quality shall be graded according to the national or trade standards.
第三十条煤矿企业应当加强煤炭产品质量的监督检查和管理。煤炭产品质量应当按照国家标准或者行业标准分等论级。
Article 30 coal mining enterprises shall exercise strict supervision, inspection and control of coal product quality. Such quality shall be graded according to the national or trade standards.
第三十条煤矿企业应当加强煤炭产品质量的监督检查和管理。煤炭产品质量应当按照国家标准或者行业标准分等论级。
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