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DN200 DN250 DN300 DN500 DN800 K9 C25 C30 C40 Pn10 Pn16 Pn25 Pn40 Cement Mortar Lining and Coating Ductile Cast Iron Pipe, Find Details and Price about Ductile Cast Iron Pipe Ductile Cast Iron Tube from DN200 DN250 DN300 DN500 DN800 K9 C25 C30 C40 Pn10 Pn16 Pn25 Pn40 Cement Mortar Lining and Coating Ductile Cast Iron Pipe - Shandong Runhai Stainless Steel Co., Ltd.