High load rating and strength: – Similar hard property as cast iron, while have a overwhelming advantage on stretch recovery. – Designed to meet and exceed A15/B125/C250/D400 loading rating, according to En124: 1994. – Less noise and lower vibration transmissions.
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.
Lightweight – Compared with cast iron manhole covers, composited covers are 50% lighter. – Lightweight allows more loading per vehicle, more convenient transportation and economical saving. – Allows a safer