... of carbon steel tee Tee TypeEqual tee, reducing tee,lateral tee, BW/butt weld tee, TH/threaded tee, SW/socket weld tee, seamless teeStandardASME B16 ... Carbon steelStainless steelAlloy steelDuplex steelNickel alloy steelCarbon steel tee, stainless steel tee, alloy steel teeASTM A234 WPB,ASTM A420 ... ANSI, JIS, DIN, and satisfy the needs of different steel materials. We were also certified with ISO9001, ...