免费无码在外自慰喷水

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            ?????(mm)
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            ?????(mm)
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            ??10%
            ??50-219
            ??0.8%
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            ??219
            ??1.0%
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            ???????(MPa)
            ???????(MPa)
            ????(%)
            GB/T5312
            320
            320-410
            ??195
            ??25
            360
            360-480
            ??215
            ??24
            410
            410-530
            ??235
            ??22
            460
            460-580
            ??265
            ??21
            490
            490-610
            ??285
            ??21
            ??????????????
            ???
            ???
            ??????(%)
            C
            Si
            Mn
            P
            S
            GB/T5312
            320
            ??0.16
            ??0.35
            0.40-0.70
            ??0.035
            ??0.035
            360
            ??0.17
            ??0.35
            0.40-0.80
            ??0.035
            ??0.035
            410
            ??0.21
            ??0.35
            0.40-1.20
            ??0.035
            ??0.035
            460
            ??0.22
            ??0.35
            0.80-1.40
            ??0.035
            ??0.030
            490
            ??0.23
            ??0.35
            0.80-1.50
            ??0.035
            ??0.030
            ??????????Cr??0.25%??Mo??0.10%??Ni??0.30%??Cu??0.30%??????0.70%??


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            免费无码在外自慰喷水

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