high quality SMC manhole cover
High load rating and strength
Similar hard property as cast iron, while have a overwhelming advantage on stretch recovery.
Against theft and safety options
Zero theft value, reducing potential accident and further maintenance cost caused by thieves.
Surface anti-slip thread guarantees safe road condition even in extreme weather.
locks are available as an option molded into the cover to improve security rate.
Non-electricity conduction and non-heat conduction.
