... other pipe fittings to the world mark high-quality elbow&teeWe offer a complete range of high quality of carbon steel and stainless steel ... ,316,316L,321,321H,904,904L etc.Alloy SteelASTM A182 F1,F5a,F9,F11,F12,F22,F91Duplex stainless steelDuplex 2205 UNS ...