1 材质：球墨铸铁ＧＧＧ５００－７，４５０－１０
２　规格：ＤＮ８０－２０００
３　标准：ＩＳＯ２５３１／ＥＮ５４５／５９８，ＢＳ４７７２
４　涂覆：内衬硅酸盐水泥，外为防腐锌和沥青漆；内外环氧树脂漆；内外喷塑。 　


　　Nodular cast iron pipe double socket, elbow DN80-2000

　　1, material: ductile iron GGG500 - 7450 - 10

　　2, specifications: DN802000

　　3, standard: EN545 / ISO2531 / 598, BS4772

　　4, coating: Portland cement lining, external corrosion of zinc and epoxy resin and asphalt paint; paint; and spray.