Manhole Type A
Drawing of Manhole Type A:

Specification of Chain Locker Eye Ring Type A:
Nominal dimension | Opening | Baseboard | Cover plate | Number of nuts | Reference weight | |||||
L | B | L1 | B1 | L2 | B2 | L3 | B3 | |||
4535 | 450 | 350 | 480 | 380 | 550 | 450 | 620 | 520 | 20 | 52.9 |
5040 | 500 | 400 | 530 | 430 | 600 | 500 | 670 | 570 | 22 | 60.5 |
6040 | 600 | 400 | 630 | 430 | 700 | 500 | 770 | 570 | 24 | 69.5 |
6045 | 600 | 450 | 630 | 480 | 700 | 550 | 770 | 620 | 24 | 73.1 |