As a gateway to the home, it is extremely important to have a secure security door. So buy security doors to pay special attention to four look:
A look at the certificate: anti-theft door should have the relevant departments of the inspection certificate, product quality should comply with the national standard GB-17565-1998 "security door general technical conditions," the technical requirements. According to the relevant standards, security levels of security doors can be divided into Class A, Class B, and Class C, with Class C security
The highest can be achieved, followed by B and A. The majority of what we see in the building materials market is A-class security doors, which are generally suitable for general household use.
Second, look at the quality: qualified anti-theft security door frame steel plate thickness should be 2mm or more, the door body thickness is generally more than 20mm, the door body weight is generally more than 40kg. The cat's eye, door bell box or lock handle can be seen. The thickness of the steel plate of the door body should be more than 1.0mm. There are several reinforcing steel bars inside, so that the front and rear panels of the door body are organically connected together. The door is best equipped with asbestos, etc. Fireproof, heat-insulating, and sound-insulating materials are used as fillers, and the door is knocked by hand to make a "click" noise.
Three door locks: Check whether the security special locks that have been tested by the public security department have been used. The steel plate with a thickness of 3.0 mm or more should be protected at the locks.
Fourth, look at the service: After installing the security door to check the key, insurance policy, invoices and after-sales service orders and other accessories and information and security door manufacturers to provide accessories and information, etc. are the same.
Security door building materials market
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