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Introduction to pttc II steel ruler calibration device
Date: 2022-03-24Read: 1
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The steel ruler calibration device is developed by Putian Tongchuang (Shenzhen) Technology Co., Ltd
Designed and developed according to the current JJG1-1999 steel ruler calibration regulations. This verification device is used for checking
A fixed steel ruler is a precision engraved metal ruler with a reading magnifying glass and a thermometer.