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Database: 189759 (19 Oct 2025)
GB 481-1993
Chinese Standard: 'GB 481-1993'
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GB 481-1993
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199
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Days<=2
Method of sampling run-of-mine coal
GB 481-1993
Obsolete
GB 481-1993
SIMILAR
unprotected-true-PDFs:
GB/T 26127-2025
GB/T 25211-2023
GB/T 17608-2022
GB/T 15224.3-2022
GB/T 25210-2021