The difference between entry door and qualified anti-theft security door

In recent years, in order to evade the supervision and inspection of the quality supervision and management department, some anti-theft door manufacturers changed the name of the anti-theft security door to "metal door" or "steel door" to the market. These "new" products, which lower the anti-theft standard, make some people who do not know the truth use them as anti-theft door purchases. In order to prevent the general public from being "flickered" by poor-quality doors, we now compare "metal doors" and "steel door" with real anti-theft security doors to enhance the identification ability of citizens.

1. Different implementation standards
The anti-theft security door implements the national standard GB17565-1998 "General technical conditions for anti-theft security door", and its (level A) product anti-destruction test requirements: the door cannot be opened or cut within 15 minutes with the interaction of ordinary hand tools and portable power tools An opening of 615cm².

The implementation of metal doors and steel entrance doors is an enterprise standard established by the enterprise itself, and the anti-destruction test time is generally within 5 minutes, and even the anti-destruction time of individual enterprise standards is 2 minutes.

2. Different materials
The national standard of anti-theft security door requires that the thickness of the door frame material is not less than 2 mm, and the enterprise standard of metal doors or steel doors requires that the thickness of the steel door frame material is not less than 1.2 mm.

3. Precautions when purchasing anti-theft security doors
Some distributors of anti-theft security doors sell "metal doors" or "steel entry doors" together with anti-theft security doors. It is difficult for ordinary citizens to distinguish these products with the same beautiful appearance but the quality difference is very easy to be misled , I spent the money for the anti-theft security door, but I did n’t buy the real anti-theft security door. The first is to emphasize the purchase of anti-theft security doors, and check whether the dealer has the current qualified inspection report issued by the provincial legal inspection agency. The second is to check whether the thickness of the steel door frame material meets the requirements of national standards. Third, the purchase invoice must be marked with "anti-theft security door" in case there is evidence in case of dispute.

The main advantage of bioglass ceramic tube is that CaO and P2O5 can be introduced into the glass. Hydroxyapatite crystals can be precipitated by heat treatment. It has excellent biocompatibility and bioactivating properties, and other components in the composition can precipitate other components. Types of crystals ensure the chemical stability and machinability of materials, and are more promising than metals, alumina and Other Materials. Many clinical trials have been conducted to date, some for six years, and have yielded promising results.

Machinable Glass Ceramic Tube

Machinable Glass Ceramic Tube,Machinable Glass Ceramic Tube Dia,Machinable Glass Ceramic Macor Tube,Machinable Glass Ceramic Tube Bushing

SHENZHEN HARD PRECISION CERAMIC CO.,LTD , https://www.hardcm.com