1. Choose according to the size and opening direction of the door

Household standard door generally has four kinds of specifications, composed of the width and height of the building hole four digits, users can choose the appropriate anti-theft security door according to the size of the door and the direction of the door, color pattern and other actual requirements.

2, pay attention to the quality and safety of anti-theft doors

The thickness of steel plate used in the door frame of steel anti-theft door should not be less than 2 mm, the thickness of steel plate used in front and rear panels of the door is between 0.8-1 mm, and the thickness of the door body is generally above 20mm. The weight of the door body should be checked, and it should generally be above 40kg. Check the inner door hinge edge of security door grade steel seal, if there is no steel seal, it does not meet the requirements of the national standard, not security door.

3, pay attention to the security of security door hardware

The anti-theft performance of the anti-theft door is mainly the performance of the key and lock, so when choosing the anti-theft door, we must check whether the lock adopts the anti-theft special lock detected by the public security department, whether there is a strengthened steel plate to protect the lock installation, and check the performance report of the key and lock. There are three kinds of anti-theft door lock core level, respectively ABC (super B) three kinds, which super B lock is the most safe.

4, check the security door structure and process

Remove the cat's eye, doorbell box or lock handle and inspect the internal structure of the door body. There should be several reinforcing bars inside the door, so that the front and rear panels of the door body are organically connected together. The material with function of fireproof, heat preservation, sound insulation had better have asbestos inside the door to serve as filler. Check the process quality of the product, whether there are welding defects, door fan and door frame with whether dense.