... steel tee, stainless steel tee, alloy steel teeASTM A234 WPB,ASTM A420 WPL6, WPL3;ASTM A105 WPB;ASTM A106;ASTM A350 LF2,DIN St37, St45.8, St52 ... .4,St.35.8,St.35.8/IASTM A333 GR.6,ASTM ... ,ASTM A403 WP304, A403 WP304L, A403 WP316, A403 WP316L, A403 WP321ASTM A182 F 304, 304L,316, 316L,904LASTM A234 WP12, A234 WP11, A234 WP22, A234 ...