GB/T 37807-2019 standards english version

NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

GB/T 37807-2019

Technical specification for underground goaf survey of open-pit coal mine

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The Standardization Administration of the People's Republic of China

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GB Standard Code	GB/T 37807-2019
Standard Category	China National Standards
GB Standard English Title	Technical specification for underground goaf survey of open-pit coal mine
GB Standard Chinese Title	露天煤矿井采采空区勘查技术规范
Chinese Version Price	$15 USD per 50 pages
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