Compressed gas cylinders made of the most modern composite material Carbon fiber reinforced epoxy resin. A revolution in scuba tank and pressure vessel production. This modern material significantly reduces the weight of the bottle. These bottles are particularly well suited for transport in the aircraft or use in the fire department or long transport routes to the dive site and location. These gas cylinders are manufactured in different technologies. These pressure vessels always consist of an inliner, a body located in the interior of which ensures the gas-tightness. Then comes as a cover layer of the composite material absorbs the forces. The last outer layer is a protective layer.