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Database: 189759 (26 Oct 2025)
YBJ221-1990 English PDF
Standard ID
Contents [version]
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Standard Title (Description)
Status
PDF
YBJ 221-1990
English
RFQ
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11 days [Need to translate]
(Metallurgical and mining construction survey specification)
Obsolete
YBJ 221-1990
PDF similar to YBJ221-1990
Standard similar to YBJ221-1990
DZ/T 0080
YS/T 514.1
Basic data
Standard ID
YBJ 221-1990 (YBJ221-1990)
Description (Translated English)
(Metallurgical and mining construction survey specification)
Sector / Industry
Ferrous Metallurgy Industry Standard
Classification of Chinese Standard
D15
Classification of International Standard
73.02
Word Count Estimation
65,664
Date of Implementation
1/1/1991
Regulation (derived from)
Development & Reform Commission Notice 2006 No. 57
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