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TYPE CB MANHOLE COVER
Nominal size
L1
B1
L2
B2
L3
B3
S
Fastener
Weight
D.
Qty
800×400
920
520
860
460
992
592
12
M20
22
121.5
14
129.9
16
138.3
18
146.7
20
155.1
22
163.5
24
171.9