http://www.allhandsfire.com/Suppression/Nozzles
This video was originally shown on the Discovery's Science Channel. Its a really great look at how firefighting nozzles are made. Using raw materials and machines, fire equipment manufacturers such as Akron Brass create state of the art nozzles for firefighters, industrial brigades, ships, military, public works, sewer and water departments, forestry services and many more applications. Firefighting nozzles are available at All Hands Fire Equipment.