What is the standard for acceptance of security doors?
North Gate industry doors are certainly unqualified, my home is also the north of the security door has been leaked, the seal is simply no use, less than three days sealed on the loss, the doorbell does not ring, and suddenly also hit not Open, to call after more than a month no news, to find the lock outside the master said that this white can not be, hinge, where the door lock is the problem, can not repair, can only make do with the. Can not afford to trouble, cheap to buy, and scrap iron price is almost, garbage stuff.
It is not easy to open the door by the key of the robber, the material is hard.
To see which level of security door, different grades have different standards
