1. The distal end of the scope is made of durable crystalline sapphire with a multi-layer coating that is highly scratch-resistant.

2. The scope body adopts low-reflection metal, higher-transparency crystal components, and a special surface coating, delivering superior color reproduction.

3. A special welding method under high vacuum is applied to the entire structure to ensure a pore-free composite, thereby extending the service life.

4. The unique length compensation system helps avoid stretching and cracks caused by material expansion during heat treatment.

5. The entire scope features a three-layer cannula system (with plug-in optical elements), reducing the difficulty of maintenance.

6. The sapphire crystal covers at both the distal and proximal ends are fixed using gold spot welding technology, making the scope more resistant to high-intensity cleaning and disinfection.