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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| JJG 989-2004 |
Verification Regulation of Grating Micrometers 光栅式测微仪检定规程 |
China Metrological
Standards Verification Regulation Grating |
 English PDF |
| JJG 341-1994 |
Verification Regulation of Grating Linear Displacement Measuring Device 光栅线位移测量装置 |
China Metrological
Standards Verification Regulation Grating |
English PDF |
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