免费无码在外自慰喷水

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            ???????????λ?????? >> ????? >> ??????????????GB??T3421??1982?? ???? 61 ?????
              
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            72014222516
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            ??????????????GB??T3421??1982??
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            350??28
            ????????
            DN200
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            ??????????????GB??T3421??1982??
            ??????????????????????????ú??????????????????P??G??????
            (1)???????
            ?в????????
            R=C+E  R1=C R2=E
            ?в???????????
            ??????
            DN??mm
            ??????磯mm
            a
            b
            c
            e
            75??450
            15
            10
            20
            6
            500????
            18
            12
            25
            7
            ?????????????????????
            ??????
            DN??mm
            ???mm
            ?????mm
            ??
            D2??mm
            ??Ч?????mm
            ?п????????
            ??kg
            ??????????
            ??kg
            ???1m????
            ??kg
            T
            D1
            5000
            6000
            ????????kg
            P??
            G??
            P??
            G??
            P??
            G??
            P??
            G??
            P??
            G??
            200
            8.8
            10.0
            202.4
            200
            220.0
            227.0
            254.0
             
             
            16.30
            0.382
            42.0
            47.5
            250
            9.5
            10.8
            252.6
            250
            271.6
            303.0
            340.0
             
             
            21.30
            0.626
            56.3
            63.7
            300
            10.0
            11.4
            302.8
            300
            322.8
            381.0
            428.0
            452.0
            590.0
            26.10
            0.741
            70.8
            80.3
            350
            10.8
            12.0
            352.4
            350
            374.0
             
             
            566.0
            623.0
            32.60
            0.857
            88.7
            98.3
            400
            11.5
            12.8
            402.6
            400
            425.6
             
             
            687.0
            757.0
            39.00
            1.460
            107.7
            119.5
            450
            12.0
            13.4
            452.4
            450
            476.8
             
             
            806.0
            892.0
            46.90
            1.640
            126.2
            140.5
            500
            12.8
            14.0
            502.4
            500
            528.0
             
             
            950.0
            1030.0
            52.70
            1.810
            149.2
            162.8
            600
            14.2
            15.6
            602.4
            599.6
            630.8
             
             
            1260.0
            1370.0
            68.80
            2.160
            198.0
            217.1
            700
            15.5
            17.1
            702.0
            698.8
            733.0
             
             
            1600.0
            1750.0
            86.00
            2.510
            251.6
            276.9
            800
            16.8
            18.5
            802.6
            799.0
            836.0
             
             
            1080.0
            2160.0
            109.00
            2.860
            311.3
            342.1
            900
            18.2
            20.2
            902.9
            899.0
            939.0
             
             
            2410.0
            2630.0
            136.00
            3.210
            379.1
            415.7
            1000
            20.5
            22.6
            1000.0
            955.8
            1041.0
             
             
            3020.0
            3300.0
            173.00
            3.550
            473.2
            520.6
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            1.?????????????????????7.20g??cm3.
            2.??????=???1m????????Ч????+?в?????????(????????????????????λ??Ч????)??
            (2)????
            ????????????????????
            ??????DN??mm
            ???????mm
            200??450
            1.51
            >1500
            1.251
            ???1.????1????????Ч????(m)?????(m)????1????????????????
                  2.?????????????????????
            (3)??????
            ???????????????????WP???????0.30????????Ws???????0.10????
            (4)????????????
            ??????????
            ??????DN/mm
            ????????bbMPa
            ??300
            340
            350??700
            280
            ??800
            240
            ????????????????????
            ???????
            ??????DN/mm
            ?????????MPa
            P??
            ??450
            2.00
            ??500
            1.50
            G??
            ??450
            2.50
            ??500
            2.00

             



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            免费无码在外自慰喷水

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