back check
In a hydraulic door closer, 1 a mechanism which slows the speed with which a door may be opened.
In a hydraulic door closer, 1 a mechanism which slows the speed with which a door may be opened.
A metal plate which is applied to a door or frame to provide additional strength for the attachment of a
A device which permits a door closer, 1 to be installed on the doorframe, rather than directly on the door.