... proofing wall then the attenuating range of the wind speed and the air pressure will be proportional to ... the square of the wind speed that is to say if the wind speed is higher,the rate of ... Details:Type:>three peaks wind dust net>single peak wind dust net>twins peak wind dust netMaterial:steel ... poeder coatingColor: blue,yellow,green,red,etcsingle peak wind dust net:Forming 250mm-500mm in width, ...