Ductile iron casting-substructure manhole cover- it has double locking device.Double Lock Substructure Manhole CoverMaterial*EN GJS 500/7 & DIN GGG 50Class*B 125Product Info Product weight is 35 kg. Manufactured in compliance with EN124 NotesWeight tolerance: plus or minus 2 kg (up to 24 kg)plus or minus 3 kg (24�125 kg)and plus or minus 4 kg (over 125 kg).
