| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 17889.1-2012 | English | 1039 |
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Days<=5
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Ladders -- Part 1: Terms, types, functional sizes
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GB/T 17889.1-2012
| Obsolete |
GB/T 17889.1-2012
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