ductile iron pipes ductile iron manhole cover

详情

Using Asia's most advanced level of static pressure line, dual host production line, melting process all automated systems, fully automatic robots to carry out the well cover and well circle grinding respectively，a full set of inspection equipment.
Features: high strength, good steel, strong bearing capacity; good mechanical properties, long service life; simple assembly, convenient construction, low maintenance costs, anti-rattling, anti-jumping, anti-theft, anti-falling, anti-displacement and other characteristics.
Classification: According to the shape of ordinary round manhole cover, anti-settlement round manhole cover, rectangular manhole cover and meter box. According to the load bearing is divided into A/B/C/D/E/F six levels.