1 first of all, you need to prepare a skin thickness measuring instrument, using a coating measuring instrument or a needle measuring instrument.

2. Then, before the measurement, it must be ensured that the surface of the flexible flat cable is flat without any impurities or depressions.

3. Then you can measure the width and thickness of the flexible cable with a coating measuring instrument or a pin measuring instrument, which can ensure the uniform size of the wire.

4. Then measure several times, and take the average of these measured values to get the average skin thickness of the wire flexible flat cable.

5. Finally, compare the measurement results with standards or specifications to determine whether the quality of flexible flat cable meets the requirements.