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براي استفاده از سرويس پرشين گيگ عضو شويد 8-46 Flanges ASME B16.47 Series A (MSS SP-44) Flanges Notes - ASME B16.47 Series A flanges (> NPS 26) are MMS SP-44 flanges. MSS SP-44 also covers NPS 12 to NPS 24 flanges which are equivalent to ASME B16.5. MSS SP-44 is the only source for