Due to the use of the special circumstances of the fire proof lock, so it is very high technical requirements, our company in the years of production, strict implementation of national technical standards, to ensure the perfect product performance and quality, and this is our team Users the basic commitment, on the technical requirements of fire safety locks, mainly in the following aspects:
1, firmness, flexibility and appearance quality fire safety locks should comply QB / T 2474's.
2, fireproof lock refractory time should not be less than its installation of fire doors refractory time.
3, fire test, fire safety locks should be no significant deformation and melting phenomenon.
4, fire test, fire safety locks should grape seedlings at no fire channeling phenomenon.
5 fire resistance test, the fire should be able to ensure that the fire door lock doors are closed.
Technical requirements regarding fire safety locks, we have been strictly observed in the years of production, and this is our products are user-approved reason, in the future we will work harder for you to provide quality professional fire proof lock.