1. Because steel materials are not flammable, and wood materials are flammable, a false subconscious is formed in the folk: steel can be fireproof and wood can not be fireproof, steel can be burglarproof and woody Can't burglar. I don’t know the real fire prevention principle is to rely on the fireproof material inside instead of looking at the exterior.

2. A certain thickness of steel plate (1.2mm or more) is indeed more resistant to damage than ordinary wood, and the steel entrance door sold on the market (also known as the security door) is 50mm or 90mm. The thickness of the panel is generally between 0.4 and 0.8 mm. I would like to ask the steel plate as thick as paper and the 60 mm thick wood board. Who is highly resistant to damage and has high anti-theft performance. This is well known.

3. The real anti-theft property of the real estate is not in the thickness of the door leaf, but mainly in the security system and electronic monitoring system of the whole community. Secondly, it is on the lock. Who has heard of how many broken doors have entered? Because now The thief usually does not break into the door, or ask the king to impersonate the owner, or use the master key to enter, then the door can be thicker to solve the anti-theft problem?

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