In general, the selection of the CMM mainly pays attention to the following aspects

Manufacturing needs to develop, measurement needs to be current, and China's processing and manufacturing industry needs to improve its competitiveness.

The maintenance of the CMM needs to be maintained in all aspects. As the key component of the CMM, the grating ruler is also a very precise part. Whether the maintenance is reasonable or not directly affects the accuracy of the CMM and the life of the grating ruler.