... :500-1200mm 2.Door Weight:30-65kg 3.Shape:quadrangle 4.Two ... 2. Fine oil seal to prevent leakage.3. High quality casting aluminum alloy body coated with three layers of glossy ... of Fire Building Materials. 8. Applicable for wood door,steel door,fire door,etc.9. Colour options: Silver, black, gold,white ... Installation types: vertical, parallell, sliding-rail on the door.Scheme of InstallationFunction