The push rod lock of fire door is used for the door lock of emergency passage, which is normally open and closed. Push rod lock is used for emergency evacuation exit door, which can be used for anti-theft and free access without locking or opening. It provides 24-hour security protection every day.

Deriyên agir ZHTdoors, 31 sal ezmûna hilberînê di deriyê agir û pencereyan de. Deriyên agir ên sereke yên UL, deriyên agir EN, deriyên agir BS EN, hwd.. Em xwedî sertîfîkayê ne.