| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| TB/T 1670.20-1985 | English | 279 |
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Days<=3
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(15 Integrated coupler lock mention 23, 24. 5 size model)
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TB/T 1670.20-1985
| Obsolete |
TB/T 1670.20-1985
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