grey frp manhole cover pass ISO 9001 high pressure long durable time color stability

grey frp manhole cover

HeBei Sinta supply frp composite manhole  well cover 

features

1.Strictly manufacture according to ISO9001:

2.Contain zero metal, no scrap value(burglarproof).3.Rebound-proof.

4.water-proof4.Multi-load capacity, wide application.5.Long service life

6.Environment -friendly: can be made in decorative surface designs with different logo & color as per its application and customer's requirement.7.Good temperature resistance from -40 to 80 Centigrade.