千分表（窄刻度）

1.表圈轉(zhuǎn)動圈為金屬外圈   Adjustable steel dial ring.
2.量桿上部為隨動于量桿的防塵帽   Anti-dirty screw rises while lifting measuring spindle.
3.帶公差指示器   With adjustable tolerance markers.
4.帶表圈緊固裝置   With dial locking screw.
5.窄刻度讀數(shù)   Narrow graduation.

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