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                公称尺寸 外径 承插口类型 承插口尺寸
                D d1 d2 I L
                DN15 27.0 20.3 20.1 19.9 24.0
                DN20 32.0 25.3 25.1 24.3 28.3
                DN25 40.0 32.3 32.1 28.0 32.0
                DN32 50.0 40.3 40.1 32.0 37.0
                DN40 63.0 50.3 50.1 35.7 41.3
                DN50 75.0 63.3 63.1 42.0 48.0
                DN65 92.0 75.3 75.1 47.0 55.5
                DN80 110.0 90.3 90.1 52.5 62.5
                DN100 133.0 110.4 110.1 63.0 72.0

                 

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