DB23/T 3486-2023 Standardized data rules for drilling of earthquake engineering geological conditions at seismic safety assessment sites in Heilongjiang Province (English Version)
Heilongjiang Provincial Standard of the People's Republic of China
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DB23/T 3486-2023
DB23/T 3486-2023 history
2023DB23/T 3486-2023 Standardized data rules for drilling of earthquake engineering geological conditions at seismic safety assessment sites in Heilongjiang Province