Drainage channel consists of channel body with one or more elastic spring bars of grid, which engages with contact surfaces directed diagonally upwards at free end under fixed contact surfaces of oppositely aligned edge protection
摘要
<p>Drainage channel consists of a channel body with fixed edge protection (2) and grid (1). One or more elastic spring bars (3) of the grid engages with contact surfaces directed diagonally upwards at free end under fixed contact surfaces of the oppositely aligned edge protection.</p>
