Cast rain iron grids
Laiwu Haitian Machinery Factory [China] 
Cast Iron Manhole Cover and grid 1)Ready Moulds for most styles 2)Best price & on time delivery 3)Ductile Iron GGG500-7
The specification of Ductile Grilles Manhole Cover and grid is as follows:
Model | Payload weight(ton) | Specification(mm) | clear openning(mm) | weight(kg) |
PF—1 | 25.5 | 749×198.5×49 |
| 16.10 |
PF—2 | 25.5 | 749×249×49.5 |
| 21.50 |
PF—3 | 25.5 | 749×299×49.5 |
| 26.00 |
PF—4 | 25.5 | 749×399×51 |
| 35.00 |
PF—5 | 25.5 | 749×499×51 |
| 42.00 |
PF—6 | 25.5 | 750×600×50 |
| 53.00 |
Cast rain iron grids
