... Size: 860/960*2050mm 2. Material:Cold-rolled steel 3. Door leaf thickness: 50/70/90 Intime ... paper, ceramic fiber, Alumina-silica fiber;5.Accessories:Hinge: New-style reinforced hinges, 90 degree or 180 ... degree invisible and 180 degree visible hinge;Lock: Guard against theft lock, Machine lock, ... , buiding, ect, more durable, environmental friendly. Intime Steel Security door YT-FD718