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Anonymous users2024-01-24Remove the cat's eye, doorbell box, or lock handle and inspect the internal structure of the door. There should be several reinforcing steel bars inside the door to organically connect the front and rear panels of the door body. It is best to have asbestos and other materials with fireproof, thermal insulation and sound insulation functions as filling.
Check whether the lock adopts a special lock for anti-theft that has been tested and qualified by the public security department, and whether there is a reinforced steel plate for protection at the lock installation site.
Check the process quality of the product, whether there are welding defects, whether the fit between the door leaf and the door frame is dense, etc.
Check the weight of the security door, and the weight of the regular security door is not less than 40 kg.
The following four points should be paid attention to when purchasing an anti-theft door: >>>More
The anti-theft door is divided into grades, the thickness of the Grade A security door is about 2 mm, the security door is used in fire and sound insulation, heat insulation and thermal insulation performance of aviation honeycomb aluminum or aluminum silicate rock wool, etc., like the anti-theft performance of the lock of the Grade A security door is B-level, which is what we call the advanced protection level, the Grade A anti-theft door will be more durable.
Home decoration attaches great importance to what doors are installed on the façade. Because choosing a better security door can give people a sense of security, but when choosing, you find that you don't know much about security doors. We don't know about the many brands and types. >>>More
Buyang Grade A door will be marked with a Grade A steel seal, Wufu Gate has five vertical squares, has the function of double locks, has anti-prying edges, has a main lock and a secondary lock, and the door sleeve line is also relatively wide.
Look at the surface, smooth, no convex pits, no scratches, uniform paint without package difference, uniform gap between the door page and the door frame on all sides, weight, good door steel plate thick, heavier, poor door steel plate thin, light weight.