Product Description Zhengde Ductile iron pipe is a type of cast iron, an alloy of iron, carbon and silicon. Graphite in ductile iron exists in the form of spheroids. Generally, the size of graphite is ...View More
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Ductile Iron Pipe Factory Hight Quality ISO 2531 K9, C40, C30 DN500 Ductile Iron Pipe Manufacturer for Water Supply with Factory Direct Sale