Ceramic sucker: 99% alumina ceramics, high temperature resistance, corrosion resistance, vacuum air duct and sucker integral molding process; increase the service life of the sucker, compared to the patch process, the overall sucker has a longer anti-aging time and can use alkali Solvent cleaning;

Ceramic bracket: using zirconia ceramics, mechanical properties are better than other ceramics, not easy to deform, long service life, and small deformation; it can be cleaned with acid solvents;

Machinable precision: the size of the tooth slotting (0.6-1.0) is controlled within 0.05, the flatness is less than 0.0025mm, and the parallelism is less than 0.0025mm. The relative dimensional tolerance and absolute dimensional tolerance of each assembly can be controlled within 0.03-0.10mm ；