... ,SCH40,SCH160,XXSManufacturing processPush, Press, Forge, Cast, etc.Material Carbon steelStainless steelAlloy steelDuplex steelNickel alloy steelCarbon steel tee, stainless ... WP321ASTM A182 F 304, 304L,316, 316L,904LASTM A234 WP12, A234 WP11, A234 WP22, A234 WP5, A234 WP9A420 WPL8, A420 WPL9ASTM A335 P5, P9, ... and socket weld tee,thread tee.2.Acoording to material :can be divided into SS Tee,CS Tee,3 ...