材质不锈钢产地温州钧泰品牌304管厚8（mm）壁厚8等级I级抗压强度PN50特殊功能耐高压型号0CR18NI9直径273执行标准GB12459公称通径NominalDiameter坡口处外径OutsideDiameter端面至端面的距离EndtoEndD1*D2DNNPSA系列B系列H20×153/4×1/226.9×21.325×183820×103/4×3/826.9×17.325×143825×201×3/433.7×26.932×255125×151×1/233.7×21.332×185132×251.1/4×142.4×33.738×325132×201.1/4×3/442.4×26.938×255132×151.1/4×1/242.4×21.338×185140×321.1/2×1.1/448.3×42.445×386440×251.1/2×148.3×33.745×326440×201.1/2×3/448.3×26.945×256440×151.1/2×1/248.3×21.345×186450×402×1.1/260.3×48.357×457650×322×1.1/460.3×42.457×387650×252×160.3×33.757×327650×202×3/460.3×26.957×257665×502.1/2×273.0×60.376×578965×402.1/2×1.1/273.0×48.376×458965×322.1/2×1.1/473.0×42.476×388965×252.1/2×173.0×33.776×328980×653×2.1/288.9×73.089×768980×503×288.9×60.389×578980×403×1.1/288.9×48.389×4589)