| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| HG/T 20635-2009 | English | 85 |
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Specification for ion of steel pipe flanges, gaskets and bolting (Class designated)
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HG/T 20635-2009
| Valid |
HG/T 20635-2009
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