Fiberglass SMC manhole covers are mainly used for municipal roads, water supply, power supply, telecommunications, street, residential area, landscape planning, oil and gas production, chemical production, drain cover, sanitation and other projects. Fiberglass SMC manhole covers can be divided to different types:
- Heavy: suitable for motor vehicle road or parking space.
- Light: no motor vehicles to enter the green, passage, bike lanes or sidewalks.
- General type: vehicles road or parking space.
Product performance comparison
| Item | Cast Iron Manhole Cover | Fiberglass SMC Manhole Cover |
| Anti theft | They have recycling value, easy to be stolen | Not easy to be stolen because there is no recycling value |
| Corrosion resistance | Poor resistance to acid and alkali corrosion | Strong acid and alkali corrosion resistance |
| Ageing resistance | Low resistance to aging | Highly resistant to aging |
| Survive time | 5-10 years | 15-20 years |
| Compressive strength | Ultimate load 36T | Ultimate load 50T |
| Cost | High cost | The cost is 10-15% lower |
| Appearance color | can’t be colored | can be colored |
| Environmental protection | High energy consumption, multi pollution | Saving resources, green environmental protection |
