????PVC?繤???A???B???C??????Щ????

    ????PVC?繤???A???B???C??????Щ????,CPVC????????????????±?????,?ò?????и???????????á????????????????????????????á????????????????????????????????,????????????????????????????????,????????????????????.?????????????????????????????PVC???,?????????????????????????.???PVC?繤???C??205????,B??305????,A??405?????????Щ???????????MPP??????????????????????????:
    PVC?繤???
    ?????б??:JG/T3050-1998;
    ??????????:???????-205??????-305??????-405????. 1??????-205 ??zhidao ??16mm-??50mm; 2??????-305 ?? ??16mm-??50mm; 3??????-305 ?? ??16mm-??50mm;
    ??????????????:16??20??25??32??40 ??????????:
    1??16???????С????????:1.00(??,????????+0.15)??1.20(??,??????+0.3)??1.6(??,??????+0.3).
    2??20?????С???(????????)??????:1.25(??,??????+0.3)??1.8(??,??????+0.3).
    3??25?????С???(????????)??????:1.50(??,??????+0.3)??1.9(??,??????+0.3).
    4??32???????С????????:1.40(??,??????+0.3)??1.80(??,??????+0.3)??2.4(??,??????+0.3). 5??40???????С????????:1.80(??????,??????+0.3)??2.0(??,??????+0.3).

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