Features:

1. Made of zinc alloy. (copper and 304 stainless steel are available).
2. Safety lock with multi-functional, configuration precision keys, anti-plug, anti data, tamper.
3. Adapt to all doors.
4. Advanced production technology and precision molds.
5. Standard and strict production requirements.
6. Consummated and professional surface treatment and anticorrosion technology.
7. With escaping function.