内径百分表

1.用于测量内径尺寸   For internal measurement.
2.带可换测头，测量范围大   Changeable anvils for wide measuring ranges.
3.百分表完全用坚固的防护罩?；?nbsp;  With indicator protective cover.
4.插入式可换测头，使用方便   Interchangeable contact points, easy to use.
5.滚轮式定位护桥   Roller aligning bridge.
6.配φ57mm普通表圈百分表   Equipped with a φ57mm dial indicator.

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