The document provides details on the filament winding process used to fabricate a bolted hub fitting tube. It describes: 1) Loading spools of dry fiber onto a winding machine and passing it through a resin bath to saturate it before winding onto a rotating mandrel in various patterns as programmed; 2) Applying additional layers of saturated mats and allowing the resin to cure on the mandrel for 24 hours; 3) Removing the cured tube from the mandrel and cutting it to length before drilling holes in one end and inserting bolts to complete the hub fitting; and 4) Applying a polyurethane liner to the inside of the tube and inspecting the final part.