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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| JJG 579-2010 |
Verification regulation of trial case lenses 验光镜片箱检定规程 |
China Metrological
Standards Verification regulation trial |
 English PDF |
| JJG 74-2005 |
Verification Regulation of Recorders for Industrial. Process Measurement |
China Metrological
Standards Verification regulation trial |
English PDF |
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