| Jiujing brand high strength composite products | ||||
| Round manhole cover | model | Weight (kg) | ||
| Diameter * cover thickness (mm) | lid | bottom | set | |
| φ900*50 | heavy | 35 | 15 | 50 |
| φ800*70 | heavy | 46 | 18 | 64 |
| φ800*50 | light | 30 | 15.8 | 45.5 |
| φ700*70 | heavy | 36 | 21 | 57 |
| φ700*50 | General type | 30 | 13.5 | 43.5 |
| φ700*40 | light | 26 | 12 | 38 |
| φ600*60 | heavy | 30 | 13 | 43 |
| φ600*50 | heavy | 24 | 9.5 | 33.5 |
| φ600*40 | light | 13.5 | 7 | 20.5 |
| φ500*50 | heavy | 16 | 10 | 26 |
| φ500*40 | heavy | 13 | 6.5 | 19.6 |
| φ400*40 | heavy | 9 | 7.5 | 16.5 |
| φ300*30 | heavy | 4.1 | 3.5 | 7.6 |