What are the precautions for purchasing security door feng shui?

1, consumers should choose the appropriate security door according to the actual requirements such as size, opening direction and color pattern.

2. The anti-sabotage function is the most important function of the security door. At the time of purchase, the seller may be required to show the inspection certificate of the relevant department, and the product quality shall meet the technical requirements of the national standard GB 17565- 1998 "General Technical Conditions for Anti-theft Safety Doors".

3. Brand guarantee: Brand is a symbol of product quality and service. Brand mainly refers to product brand and dealer brand. When buying security doors in the market, it is best to buy them in a regular large-scale home building materials city. Consumers should also pay attention to the "FAM" logo, enterprise name, implementation standards and other contents of the security door when purchasing, so that the door that meets the standards can be both safe and reliable.

4. The thickness of the steel plate of the door frame of the qualified security door should be above 2mm, and the thickness of the door body is generally above 20mm. The weight of the door should be checked, generally above 40kg. The internal structure of the door can be checked by removing the cat's eye, doorbell box or lock handle. The thickness of the steel plate of the door body should be above 1.0mm, and there are several reinforcing ribs inside, so that the front and rear panels of the door body are organically connected together and the overall strength of the door body is enhanced. It is best to use asbestos and other materials with fire prevention, heat preservation and sound insulation functions as the door filler. Knocking on the door by hand will make a "pop" sound, and consumers should be flexible in opening and closing the door by hand.

5. Inspection of process quality: Pay special attention to check whether there are welding defects such as open welding, no welding and missing welding. See whether the door leaf and door frame are closely matched, whether the gap is uniform, whether the opening is flexible and whether the joints are tight. The surface of the door panel should be treated with anti-corrosion, and generally it should be painted and sprayed with plastic. The surface of the paint layer should be free of bubbles and uniform in color. Most doors are also embedded with rubber sealing strips on the door frames, so there will be no harsh metal collision when closing the door.