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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| QB/T 1474.5-2005 |
Drawing ruler. Protractor 绘图仪尺 量角器 |
China Light Industry
Standards Protractor |
 English PDF |
| JJG 275-2003 |
Verification Regulation of the Protractors for Multiple Point Tool 多刃刀具角度规检定规程 |
China Metrological
Standards Protractor |
English PDF |
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