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Roof drainage device with plate for bonding to roof covering, has roughened surface preferably obtained using steel brush
Roof drainage device with plate for bonding to roof covering, has roughened surface preferably obtained using steel brush
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机译:屋顶排水装置,带有用于粘合屋顶的板,表面粗糙,最好使用钢刷获得
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摘要
At least part of the plate surface has been roughened. The device (1) comprises at least one plate-shaped part (2) for bonding to at least one roof covering layer. An independent claim is also included for a device used to roughen the surface of the plate, comprising a transport device for the plate and a means for roughening the surface of the plate as it travels along the transport trajectory.
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