It is the most popular closed technology for the manufacturing of composite parts. It is used for the manufacturing of bulky products in the automotive industry, aviation, medicine etc. In LRTM, as a rule, the bottom and upper half of the mould is firm. Most frequently, reinforcement is manually laid into the bottom mould. The mould is closed by upper part, and vacuum is created in the mould. Together with vacuum, resin is fed. With the help of vacuum, the layers of reinforcements are rapidly saturated, thus creating high quality parts without any air bubbles.