A fake door filled with honeycomb paper and then processed into a security door is flooded in the streets and lanes, which has caused a very bad influence. The method of this inferior door is to fill the honeycomb paper into the door panel painted with glue, and the honeycomb paper is quickly fixed on the door panel, and then the other door panel is covered. After welding and painting, the so-called finished security door is made. The security door steel plate with a thickness of 1. mm is the best, but most of the steel plates actually sold in the market at present are .8 mm, and even .6 mm steel plates are sometimes sold as .8 mm.. Consumers should also knock on the door panel of the security door with their fingers when buying it. If they hear a muffled sound, it proves that the internal filling is full; Brittle sound, which proves that the internal filling is not full; Secondly, it is necessary to measure the thickness of the steel plate of the door frame. The public can measure the thickness of the steel plate of the door frame from the position of the keyhole of the door frame, which should reach 2 mm; The overall weight of the security door produced according to the formal process will not be less than 6 kg; Consumers should ask the sales department for the security door inspection report issued by the quality inspection department. Top ten brands of security doors in China:
1) Panpan security door (China famous brand, China well-known trademark, member of International Door Industry Association)
2) Dongweili security door (China famous brand, European national standard door industry)
3) Cast security door (China famous brand, China well-known trademark, national standard setting unit)
4) Wangli security door (China famous brand, China). National standard setting unit)
5) Maxim's security door (China famous brand, China well-known trademark, national security door standard setting unit)
6) Buyang security door (China famous brand)
7) Feiyun security door (China famous brand)
8) Zuochen security door, 9) Yadile security door (a newly developed high-end series of China well-known trademark Baijia door industry) <