Stainless steel tee is an important connection of pipe fittings and pipelines, which is used in the main pipeline to branch the pipe, which can reduce the connection port. Stainless steel tee has equal diameter and different diameter, the size of the main pipe and the end of the equal diameter tee is the same, the main pipe size of the different diameter tee is the same, and the pipe size of the branch pipe is smaller than the pipe size of the main pipe.