| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| HG/T 21634-1988 | English | 999 |
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Days<=6
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(Forged steel socket welding pipe fittings)
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HG/T 21634-1988
| Obsolete |
HG/T 21634-1988
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