PIPEFITTER OR STEAM FITTER:

A person who lays out, assembles, fabricates, maintains, and repairslarge-sized piping systems capable of enabling high-pressure flow.

http://www.bls.gov/ooh/construction-and-extraction/plumbers-pipefitters-and-steamfitters.htm

Some pipefitters are employed by mechanical construction companies that are contracted by various types of industries. Other pipefitters may work for chemical process facilities, oil and gas refineries, and nuclear, coal burning, or hydroelectric power generating plants. Pipefitters are sometimes employed in facilities such as distilleries, breweries, pharmaceutical companies, and healthcare centers.

Centering Tools

Flange tools and two hole

Pins Marking tools Cutting tools

Pipe clamps Wraparounds Pipe tools kit

Pipe spacing tools Levels Pliers Flange spreaders and vises

Rulers protractors and squares Templates and patternsWelding tools

Utility clamps

Welding gauges