| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 50639-2019 | English | 1949 |
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Days<=11
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Code for design of polyamide polymer and fiber plant
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GB/T 50639-2019
| Valid |
GB/T 50639-2019
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