Ductile iron manhole cover

1.ductile iron 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 3. Guatantee (1) YDT Foundry will replace any heavy duty castings that have been properly installed and broken in normal use (2) Different accessories are available,more informationupon receipt of your enquiry. If you are interested in our products,please do not hesitate to contact with us.Our high quality and competitive price will give you every satisfation.And you will get our quick reply. B--125 300X30030kg200x2007kg 400x40030kg300x30010kg 500x50035kg400x40017kg 570x44535kg485x36022.5kg 600x60035kg500x50029kg 700x70040kg600x60042kg 800x80045kg700x70055kg C--250 400x40035kg300x30015kg 500x50040kg400x40023kg 550x55045kg450x45030kg 570x44545kg485x36028.5kg 600x60045kg500x50034kg 600x80060kg500x70052.4kg D--400 400x40075kg300x30020kg 500x50075kg400x40032kg 550x55075kg450x45041kg 600x60075kg500x50048kg 600x80075kg500x70069kg 700x70075kg600x60070kg 800x80080kg700x70095kg 900x90090kg800x800113kg 1000x1000100kg900x900154kg