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Black-and-white technical line drawing of a cylindrical coupling under inspection with a dial indicator and mandrels, supported by centers.

Black-and-white technical line drawing of a cylindrical coupling under inspection with a dial indicator and mandrels, supported by centers.
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“Technical line drawing, black-and-white, showing a cylindrical coupling mounted between two inspection centers. Two inspection mandrels inserted into the coupling from both sides. A dial indicator positioned on top touching the outer surface of the coupling. All elements labeled in English: ‘Dial Indicator’, ‘Inspection Mandrel’, ‘Coupling’, ‘Center’. Simple engineering style, clean lines.” See more

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