1. Anti-corrosion: the materials FRP/GRP, SMC, DMC/BMC have high
anti-corrosion.
2. Burglarproof: This kind of material has no recycle worth so it
was burglarproof.
3. Long use-age life (Not less than *0
years).
4. Lighter than cast iron manhole cover
5. Good sealing, no noise pollution or rebound
6. High load ability: strictly manufactured according to
ISO***1:***0 and EN**4
7 .Harmonious color and luster: colors of manhole cover contrast
against the background of surrounding buildings and pavement
