| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| JJG 661-2004 | English | 389 |
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Days<=3
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Verification Regulation of Flatness Interferometer with Isoclinic Circle Fringe
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JJG 661-2004
| Valid |
JJG 661-2004
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