| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| HG 21514-1995 | English | 719 |
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Days<=5
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(Carbon steel, low alloy steel manhole and hand hole types and technical conditions)
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HG 21514-1995
| Obsolete |
HG 21514-1995
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