| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| QC/T 431-1999 | English | 359 |
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Days<=3
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(Spark plug porcelain insulator technical conditions)
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QC/T 431-1999
| Obsolete |
QC/T 431-1999
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