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The difference between steel doors and security doors, clear at once!
The so-called metal doors, steel doors, entry doors are "playing ball", is avoiding the strict provisions of the state security doors. Compared with the security doors, some metal entry door frame, door and lock around the lack of reinforcement plate, reinforcement part,...Read more -
How to judge the door opening direction
In the entry door order, there will always be some customers can not choose the right direction, cause installation problems, some installers will also make mistakes. Usually there are four open direction: the Left Hand In-swing, the right Hand In-swing, the Left Hand Ou...Read more -
Fire door expert tell you how to choose quality fi
1. fire door fire resistance level Fire doors are divided into A, B, C three levels in China, which is to indicate the fire door fire integrity, that is, fire resistance time, the current standard in China is not less than 1....Read more