Views: 267 Author: Site Editor Publish Time: 2021-12-27 Origin: Site
01. Look at the anti-theft level
There are four levels: A, B, C, and D, safety factor A>B>C>D, and select A.
02, look at the lock cylinder
The key and the core of the anti-theft door is the door lock. The lock cylinder is divided into three types according to safety: A, B, and C. The safety factor is C>B>A>, and the C-level lock cylinder is selected.
03. Filling in the Door leaf
The main anti-theft doors on the market currently use paper honeycombs,Rock wool,if you need fireproof function,choose fireproof board more better
04. look at the material
At present, there are simple steel doors on the market,material are cold roll steel(standard market material),galvanized steel(do not easy to rust) ,zinc alloy material(High-end steel doors often use) .The thickness/material of the steel plate directly affects the safety of the door.