... ,ISO,API,CERTIFICATED MANUFACTURER tee for pipe fitting, pipe fittings. The mainly are used to branch pipe place of the mainpipe line,it ... and equal tee.equal tee: the same pipe diameter between main pipe and branch pipereducing tee: branch pipe's diameter less then the that of ... tee and equal teePurposetee with used in the place owned branch pipe fittings , for its easy to use simple, widely used. ...