4-step Calibration Block for Ultrasonic Thickness Gauge 3mm-5mm-10mm-15mm
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<b>[Product Information]</b><br>
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<li>The lead time is about 2 days. FedEx shipping time to USA is about 5-7 days.</li>
<li>•This 4-step calibration block is "mm" unit, which is 3mm,5mm,10mm and 15mm</li>
<li>The steps will be graved in the block.</li>
<li>In the listing picture, there is nothing in it. But what you receive will have the steps in it.</li>
<li>If any questions, please contact us via message.</li>
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