形管, 三通管, 丁字管节

drop tee T tee fitting T tee flex spanner T lead tee T tee pipe action of magic tee T steam pipe tee steam pipe tee head branch pipe tee S matrix of magic tee T t pipe tee tee-pipe simple pipe tee reactor reduced tee pipe coupling tee piece pipe tee pipe coupling T-pipe t branch pipe T-branch (pipe)