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Round grate Description
Product Parameters
| Cover size mm. (In.) | Frame size mm. (In.) | Depth mm. (In.) | Total Weight Kg | Test Load KN
|
| Φ640 (25″) | Φ750 (29 1/2″) | 70-100 (2 3/5″ – 4″) | 50-100 | C250,D400,E600 |
| The dimensions, patterns, and characters of the manhole cover support customization. | ||||
Product Features
Material: nodular cast iron QT500-7
Anti theft: The grate is connected to the support with a pin shaft, and the turning angle is not less than 120 ° to prevent loss.
Anticorrosion method: Apply black anticorrosive asphalt paint.