Below is a list of Tube Fabrication manufacturers from Downey, California. Tube fabrication, or pipe fabrication, uses a variety of techniques to shape, bend, enlarge and cut tubes of all sizes and metals into parts, components and consumer products. Tubes are used to serve many functions: containment, support, transportation, protection etc. While tube fabricators are not generally involved in forming raw metal materials into tubes, tube fabrication services are an essential part of the process of tube or pipe manufacturing.