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PN16平面、突面铝合金整体铸造法兰单位为亳米公称尺寸DN连接尺寸密封面法兰厚度C法兰颈法兰外径D螺栓孔中心圆直径K螺栓孔径1.螺栓dfNR数量n螺纹规格159565144M12452253282010575144M12582254082511585144M126822550832140100184M167822560840150110184M168833070850165125184M1610233084865185145184M16110330104S80200160188M161383301208100220180188M161583301408125250210188M161783301708150285240228M20212340190102003402952212M20268345246102504053552612M24320345296123004604102612M2437845035012