| 摘要 |
A flooring system consists of a number of frames (1) equipped with a toothing (9, 10) on opposite lateral edges (7, 8). The toothing consists of teeth (12, 13) connected, at each tip, with a downward lateral wall (19) which delimits a U-shaped track (11). The lateral wall (19) is, at its upper side, projected from either side of the tip of the tooth (20) so that surfaces (21) pointing upwards are formed. These surfaces may be used as contact surfaces for engagement under the roots (22) of teeth of an adjacent grate (1). Due to the engagement of the contact surfaces (21), a grate will not be able to loosen unintendedly from a floor, and consequently such a flooring system will be particularly well suited for use in pigsties.
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