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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| JJG(JB)81-1992 |
Specification for verification of measurement meters of groove diameter and groove position of inner ring and outer ring of deep groove ball bearings and angular contact ball bearings |
China Metrological
Standards Specification verification measurement |
 English PDF |
| JJG(SJ)04022-1989 |
Specification for verification of Q01 model high frequency low power triode transistor Ft standard measurement meters |
China Metrological
Standards Specification verification measurement |
English PDF |
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