In addition to elbows, carbon steel pipe fittings also include tees, which attach three areas of pipe, creating joints for fluid circulation. Equal tees are used when the linking branches are of the same diameter, while reducing tees are used when the branch pipe is of a smaller diameter. A234 http://italianculture.net/redir.php?url=https://hfittings.com/carbon-steel-pipe-fittings-manufacturer/