... /2'' to 106'' china pipe fittings 3.high quality china pipe fittings 4.short delivery 5.ISO,API,CE Steel Pipe Fittings 1. Material: stainless steel ... A403 WP304/304L, WP316/316L, WP321, WP347, WPS 312545 Duplex$super duplex stainless steel ASTM A 815 UNS S31803, UNS S32750, UNS ... ASTM A182 F304/304L, F316/316L, F321, F347, 5 Duplex$super duplex stainless steel ASTM A 182 F51/UNS S31803, F53/UNS ...