Middle slot linear U type drainage channel With the drain plug,outfall together constitute a complete drainage system .
The drainage channels have many specification ,can make according to your requirement .
Widely used on the gound drainage system of national defense construction, civil building, commerce,industrial.
For example : airport ,port,park, stadium,many kinds of lanes,square drainage,street drainage and so on .
The material of our drainage cover are grp frp
1. Decoración ...