Measure special chi of core appearance
The utility model relates to a measuring technical field, especially relating to a measure special chi of core appearance, it includes the short chi of base, high ruler and slidable, the base is the square of square for the top surface, the middle part on four limits of base top surface is vertical...
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Hauptverfasser: | , , , , , |
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Format: | Patent |
Sprache: | chi ; eng |
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