... WPHY 52,WPHY 46,WPHY 42,API 5L GRB, X60, X65, X42,X52,ASTM A403 WP304, A403 WP304L, A403 ... VALVE Co.,Ltd (CE,ISO,API,CERTIFICATED MANUFACTURER tee for pipe fitting, pipe fittings. The mainly are used ... tee: the same pipe diameter between main pipe and branch pipereducing tee: branch pipe's diameter less then ... teePurposetee with used in the place owned branch pipe fittings , for its easy to use simple, ...