1. Attached to the steel frame is suitable for all kinds of doors and windows and wall connections, the installation of high precision, reliable connection, but the high cost of bronze doors. When the gap using polyurethane foam sealant or other flexible packing materials, fixed steel dovetail iron should be used instead of the foot, in order to ensure that the doors and windows and wall fixed connection reliability.
2. Doors and windows and reinforced concrete wall of steel fixed connection is available (or dovetail foot iron) nail or metal expansion bolt connections. When using a fixed connection fixed steel doors and windows, doors and the gap between the frame and the wall should be used all around the cement mortar joints plug, and door and window frame reinforcement material plays an important role. On the brick wall is strictly prohibited by nail fixing doors and windows.
3. Doors and windows and wall connection is available fixed steel (iron or dovetail foot) metal expansion bolt connection. With reinforced concrete walls, as when using a fixed steel plug gap should cement mortar joints, cracks when using polyurethane foam sealant or other flexible material filling should dovetail iron legs fixed.
4. Doors and windows can be connected with steel pins welded iron dovetail connection method. Iron and steel foot dovetail connection steel bars or steel angle code welding adjustment.
