| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| JTG/T D31-06-2017 | English | 2029 |
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Days<=11
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(Technical specification for highway design and construction in seasonal frozen soil area)
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JTG/T D31-06-2017
| Valid |
JTG/T D31-06-2017
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