ductile cast iron manhole cover.
1.size:DIA frame**0mm.opening:**0mm. weight: *0kg.
2.bolt connect frame to cover.
3. make unti-theft lock. lock.
4.make seal ring.
5.surface make black paint
also manufacture other type ductile cast iron manhole cover: square
frame square cover. square frame round cover. round frame round
cover.
all kinds of ductile cast iron gully. sewer grating.
Export to: France. algeria. morocco. spain.
