| 摘要 |
PCT No. PCT/DE92/00079 Sec. 371 Date Aug. 6, 1993 Sec. 102(e) Date Aug. 6, 1993 PCT Filed Feb. 6, 1992 PCT Pub. No. WO92/14013 PCT Pub. Date Aug. 20, 1992.A formwork panel has a board and a frame for the board. The frame is made up of strips of sheet material which extend along respective edges of the board and project from the edges at right angles to the board. Each strip has a flat longitudinal marginal portion adjacent to the board and a flat longitudinal marginal portion remote from the board. The marginal portions of a strip are located in a common plane. Each strip further has two protrusions which respectively extend from the marginal portions of the strip towards the opposite strip of the frame and define recesses opening away from the opposite strip. A protuberance is disposed between the two protrusions of a strip. Each protuberance extends from the adjoining protrusions away from the opposite strip and defines a depression opening towards the opposite strip.
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