Water flowing through a steel pipe. Precision sizing of metal pipes is done using a production technique known as tube drawing that was first used in the 19th century.

Water flowing through a steel pipe. Precision sizing of metal pipes is done using a production technique known as tube drawing that was first used in the 19th century.

Water flowing through a steel pipe. Precision sizing of metal pipes is done using a production technique known as tube drawing that was first used in the 19th century.