The company I used to work has one department specialising making security steel door, one of the customer is a company in Turkey
The design of these steel security door system (sub-frame; frames; doors; ironmongeries) looks just like ordinary timer doors except they are bullet and bomb and car crash proof! And 3 hours fire-rated spec. 作者: xyzchan 時間: 30-1-2014 22:08
