* Blueprint reading
* Detailing
* CAD drawing coordinators 
* Layout
* Pipe threading
* Pipe grinding
* Plasma cutting
* Gas arc cutting
* Rigging
* Brazing 
* Soldering
* Mitering
* Tube bending
* Valve installation and repair 
* Mechanical pipe cutting and grooving
* Supports and hanger installation
* Preparation and installation of medical gas piping
* Welding; GMAW, TiG, SMAW, Orbital)