Hardware advantages: 1. The base and columns are made of 00 grade granite main structure, with good seismic performance and no deformation. 2. The workbench is made of QT500 ductile iron that has undergone multiple high-temperature tempering processes, with stable expansion physical properties, high precision, and no deformation. 3. WeimiDD fully automatic 0745 continuous zoom lens, which can automatically switch measurement magnification in the software, saving time and effort without the need to calibrate the scale. 4. LED intelligent circular light source, divided into eight zones, can change various angles and brightness to meet the needs of different products. 5. The light source has no switch, and the strength of the light source can be directly controlled in the computer without the loss of electronic switch components;