Plastic Inspection Manhole

Description

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The cover for manholes can use cast iron well cover, cover made of composite materials and cover of steel fiber reinforced concrete. The quality is in accordance with the requirement of current CJ/T******0 Plastic manholes for drainage in construction zone. Its color is white or gray, with the interior and exterior wall for well shaft being flat, smooth, and without bubble, crack, sag, uneven color and decomposed color line on surface. The plastic well seat and shaft shall be without any crack or split under the static load pressure of *5KN.