| 1.7 Solid Top Manhole Frame and Cover | |
|---|---|
| Material | Ductile Iron |
| Class | D400/C250/BB125 |
| Type | Non-Rocking |
| Shape | Rectangular Solid Top/Recessed |
| Lifting Key Type | Closed Keyways |
| 1.8 Double Triangular Manhole Frameand Cover | |
|---|---|
| Material | Ductile Iron |
| Class | D400/C250/BB125 |
| Type | Non-Rocking |
| Shape | Double Triangular/Recessed |
| Lifting Key Type | Closed Keyways |