Gully drain grating cover manhole

1.Nice appearance-- the color is in the material of sealed manhole cover, not only coated on the surface

2.Free design---such as logo, color, pattern and dimension can be designed by customer

3.Light weight---composite manhole cover is only about half of cast iron manhole cover

4.High strength---the strength of composite manhole cover is ten times as rigid PVC

5.Against theft-- composite manhole cover has no value of recycling, thus completely solve the problem caused by theft.

6.Long service life---composite manhole cover can be used for about 30 years

7.Well sealed---it can be used hermetically, and effectively prevent poisonous gases leaking out. No noise pollution or rebound.