... ,lateral tee, BW/butt weld tee, TH/threaded tee, SW/socket weld tee, seamless teeStandardASME B16.9, ASME B16.11, ASME ... ''(Butt-welding and seamless);1/8''-4''(Threaded and socket-welding);16''~72''(Welded)Wall thicknessSCH10,SCH20,SCH30,STD,SCH40,SCH60,XS ... 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 ...