| 摘要 |
The two locating components (3,7) fit against the surface facing the roof top (32',33') of the already fitted beam and the beam to be fitted on the roof for defining the position of the latter beam in relation to the former. - The two location components are reciprocally movable between positions in which they are lockable relatively to one another for adjustment of the distance between them and thereby between the surfaces (32',33') of the two beams. |
