| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| TB/T 2921.4-2008 | English | 919 |
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Days<=6
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Electrified railway catenary steel pillars Part 4: H -type pillar
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TB/T 2921.4-2008
| Obsolete |
TB/T 2921.4-2008
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