| 1) Manhole covers with frames EN124 class A15 |
| Cast iron/ductile iron cover and frame |
| Material: ductile iron/cast iron |
| Standard ：EN124 |
| Pressure：classA15 |
| Coating: black bitumen coated |
| Class A15 bearing capacity: 1.5TON |
| 2)Manhole covers with frames EN124 class B125 |
| Cast iron/ductile iron cover and frame |
| Material: ductile iron/cast iron |
| Standard ：EN124 |
| Pressure：classB125 |
| Coating: black bitumen coated |
| Class B125 bearing capacity: 12.5TON |
Accessories: single seal, with lock, double seal, with sealing ring, rectangle
| 3) Manhole covers with frames EN124 class C250 |
| Cast iron/ductile iron cover and frame |
| Material: ductile iron/cast iron |
| Standard ：EN124 |
| Pressure：classC250 |
| Coating: black bitumen coated |
| Accessories: single seal, with lock and sealing, with sealing ring, with sealing pin |
| Class C250 bearing capacity: 25TON |
| 4) Manhole covers with Frames EN124 Class D400 |
| Cast iron/ductile iron cover and frame |
| Material: ductile iron/cast iron |
| Standard ：EN124 |
| Pressure：classD400 |
| Coating: black bitumen coated |
| Accessories: single seal, double seal, rectangle, double triangular, with GRP plate, with lock and sealing, with sealing ring, with sealing pin, with lock, with lock and hinge, with sealing ring and GRP plate double semicircle. |
| Class D400 bearing capacity: 40TON |
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