GB 248-1964Assembled reinforced-concrete supports for roadways in coal mines (English PDF)
装配式钢筋混凝土煤矿巷道支架
GB 248 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB 248-1964 | Assembled reinforced-concrete supports for roadways in coal mines | Obsolete |
GB 248-1964 is obsolete. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
CNCA
Level / Type
National · Mandatory
Issue date
January 14, 1964
Implementation date
April 1, 1964
Scope
GB 248-1964 is the English-translated version of 装配式钢筋混凝土煤矿巷道支架.
GB 248-1964 is the Chinese national standard "Assembled reinforced-concrete supports for roadways in coal mines". It was issued on January 14, 1964 by CNCA, and took effect on April 1, 1964. It is obsolete: it has been withdrawn (abolished on October 14, 2005).
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Document preview — GB 248-1964
National Standard of the People's Republic of China
Issued by: CNCA
Contents
- Document data
1 Document data
Sector: National standard (Mandatory).
Issuing body: CNCA.
Date of issue: 1964-01-14.
Date of implementation: 1964-04-01.
Status: obsolete, withdrawn on 2005-10-14.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
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GB 248-1964
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