FLANGE PIPE:WN 4IN CLASS 300 RF DUPLEX SS SCH 40 TAPERBORE TO SCH 10S NACE MR0175 ASTM A182 UNS S327
FLANGE PIPE:WN 4IN CLASS 300 RF DUPLEX SS SCH 40 TAPERBORE TO SCH 10S NACE MR0175 ASTM A182 UNS S32750 ASME B16.5 GR F53/F55
FLANGE PIPE:WN 4IN CLASS 300 RF DUPLEX SS SCH 40 TAPERBORE TO SCH 10S NACE MR0175 ASTM A182 UNS S32750 ASME B16.5 GR F53/F55
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