三爪内径千分尺

1.适用于大孔径的精密测量   For measuring holes bigger than 100mm.
2.配有接长杆适用于深孔测量   With extension rod for deep hole measuring.
3.校对环规按用户需求可选配   Set ring can be applied as per request.
4.超大测量行程方便使用   Big measuring range.
5.硬质合金测量面   Carbide measuring faces.

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