Every detail is particularly exquisite, with many advantages, such as quiet, intelligent buffer, fire safety and durability, anti pinch and so on. In case of emergency danger, you can insert the emergency key into the emergency hole, and turn it to open the lock from the outside. The main material of this fireproof lock is zinc alloy. The lock cylinder is equipped with spiral compression spring, which has good elasticity and long service life. It has 3 hours UL fire safety certification, 12.5mm tongue length, no door opening direction limit, and can be opened left and right, which is more safe and guaranteed. 75mm diameter cover, wide range of use, can be applied to different thickness of the door, easy to install, simple, easy to operate. There is a unique spring return structure in the front and rear gears, which can effectively avoid the handle drooping.

The structure is solid, durable and reliable. It can effectively evacuate people in emergency without locking or opening. It can guard against theft and freely enter and exit. It provides 24-hour security protection every day. Solid tongue provides strong protection against pressure and long fire resistance.

 

is made of imported stainless steel and high technology, so that the panel of the lock body can be closely combined with the lock body, which is firm and does not fall off. The panel of the lock body adopts advanced surface drawing technology, which is rust and corrosion resistant, durable and has longer service life. This fire-proof door lock has a low sound when closing. It is suitable for doors, bedrooms, books, restaurants, hotels, office buildings and other high-rise buildings. The utility model has the characteristics of a wide range of applications, a normal passage and a fireproof lock body.