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evalyasyon Presyon: class150, class300, class400, class600, class900, class1500, class2500 _ PN6, PN10, PN25, PN40, PN64 tèrès yo eksetera.
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Standards:ANSI B16.5,ANSI B 16.47 SERIES a&amp;b,MSS SP44,ASA,API-605,AWWA