rainwater system

compositemanhole cover 1.composite manhole coversfeature: (1)Environmental protection: non-toxicity raw material (2) Longevity: anti-corrosion, anti-rust, anti-abrasion, excellent anti-pressure capability; (3) Competitive price: lower than stipulated standard cast iron one (4) Light weight: 1/3 lighter than cast iron ones (5) Nice appearance: rich colors available, whole material dying for long lasting (6) Anti-theft: Non-recycle, anti-theft naturally (7) Low noise: Harsh noise and rebounding free when car rolls 2. Applications (1) Electric power pipeline well; post, telecommunication, communication pipeline well; (2) Street lamp well, fire control well, all kinds of valve wells; (3) City water, drainage pipeline well; heat supplied, gas well; (4) As cover board for anti-corrosion project, open ditch; it as well as can be made according to customers requirements.