Ductboard collarA fitting for connecting conduits to ductboard and other walls, including a short length of pipe having a seating bead and attached spring clips for securing the fitting to a bore in a ductboard, with the spring clips holding the ductboard against the bead....
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particularly in the form of a metal or plastic collar tightened around the pipe, or of a cylindrical bearing surface on the exterior surface of the fitting. When, in particular, the build-in support of the stiffener is independent of and outside the flexible pipe, the support for attaching ...
(57)< Abstract > < Objective > This device to improve conveyance efficiency rapidly, additional strength huThe case of ranji installation cancelling the mistake of the size difference and the position shift etcBoard huranjidaku even also of the additional strength collar head which it tries to ...
(57)< Abstract > < Objective > This device to improve conveyance efficiency rapidly, additional strength huThe case of ranji installation cancelling the mistake of the size difference and the position shift etcBoard huranjidaku even also of the additional strength collar head which it tries to ...