| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 39245.2-2020 | English | 299 |
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Days<=4
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Grooved metal gaskets with covering layers for pipe flanges - Part 2: Class designated
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GB/T 39245.2-2020
| Valid |
GB/T 39245.2-2020
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