Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Google Book |
HG/T 21522-2014 | English | 299 |
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|
3 days
|
Plate flange manholes with davit to horizontal cover
|
HG/T 21522-2014
| Valid |
HGT 21522-2014
|
HG/T 21522-2005 | English | 1239 |
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|
9 days
|
Level of the hanging cover plate welded flange manhole
|
HG/T 21522-2005
| Obsolete |
HGT 21522-2005
|
HG 21522-1995 | English | 319 |
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|
3 days
|
(Horizontal hanging cover plate welded flange manhole)
|
HG 21522-1995
| Obsolete |
HG 21522-1995
|