Security bar system for a window or an opening in the building wall comprises metal tubes, steel rods , means for fixing the ends of metal tubes to wall or frame elements, and means for joining metal tubes to one another

摘要

The security bar system for a window or an opening in the building wall comprises metal tubes (2), steel rods (1), means for fixing the ends of metal tubes to wall or frame elements, and means (4) for joining metal tubes to one another.