my factory is professional manufacture ducile iron manhole cover in china.

we  exploit a kind security ductile iron sewer manhole cover of newest for customer.

feature:

1. frame joint to cover with bolt. the cover opening to 120degree. but it can lock stop on 90 degree.

2, install anti-theft lock.

3. make seal gasket of PVC .or rubber.

thease MHC and grate export to MOROCCO. ALGERIA. FRENC.ITALY SPAIN SO ON.