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cast iron manhole cover
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Round, Square, Rectangle, Triangle, Ductile Iron GGG500-7 & 400-12, Major standards designs available；As per customers' drawings or samples；Molding boards Green sand with hand molding；Cold appli
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circular manhole cover
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Place of origin: cangzhou,hebei provinceRaw materials: cast iron or ductile iron Shape: circular ,square,rectangle,triangleSize: DN200-DN1300
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ductile iron manhole cover
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Standardsas per EN124Surface printingepoxy painting or bitumenClassA15 B125 C250 D400 E600 F900Materialsductile iron cast iron grey ironProcessmoldings boardsInscriptionas per customers&rs
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