... , novel structure, convenient operate Tee: Tee TypeEqual tee, reducing tee,lateral tee, BW/butt weld tee, TH/threaded tee, SW/socket weld tee, seamless teeStandardASME B16.9, ... 35.8/IASTM A333 GR.6,ASTM A860 WPHY 70, WPHY 65, WPHY 60, WPHY 52,WPHY 46,WPHY 42,API 5L GRB, X60, X65, ... connection type: can be divided into butt weld tee and socket weld tee,thread tee.2.Acoording to material :can be divided ...