Aviation Maintenance industry. Repair and Overhaul (MRO) procedures need to keep up with the technological evolution and evolve from the 2D support to the 3D. The available manuals for learning and training MRO tasks rely much on old 2D drawings and lists of maintenance steps to be performed sequentially. However. https://www.spidertattooz.com/Bolt-Action-San-Marco-Marines-Infantry-Section/