D400 T70-106 heavy duty ductile iron manhole cover
heavy duty ductile iron manhole cover 1.4 opposite triangular cover 2.telecom manhole cover 3.Class D400
European Manhole Covers and Gratings
Manhole tops are constituted by triangular lids provided with:- hinge, in order to facilitate the opening/closure operation;- hold of lids on the frame, in 3 points, in order to avoid the noise;- in addition to the lock with security key, a "safety block" exists applied on the frame, in which, starting from an angle of 90°, the accidental closure of each lid is prevented.
D400 T70-106 heavy duty ductile iron manhole cover
