... , WP321, WP347, WPS 312545 Duplex$super duplex stainless steel ASTM A 815 UNS S31803, UNS S32750, UNS S32760 STANDARDSANSI, ISO, JIS ... /316L, F321, F347, 5 Duplex$super duplex stainless steel ASTM A 182 F51/UNS S31803, F53/UNS S32F50, F55/UNS S32F60 ... & HIC Fittings for Off-Shore Applications Production Facility Certificate: Package: The eighteenth National Congress of the CPC pipe fittings