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% of daylight
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% of daylight for PcP. ventilation gratings
  The tables show the free area in % (average values) at different mesh sizes and bearing bar thickness.
The percentage has been calculated on the basis of a 1000x1000 mm grating. Please note that gratings with a mesh clearance Mc larger than the height H of the grating have an open front. Gratings with a mesh clearance Mc smaller than or equal to the height H of the grating have a closed front. |
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