摘要：It is produced, it is worn out, it is thrown away, it is becoming more and more polluted, it is recovering, but it is not completely away, and therefore the material reserves are diminished and some have become even deficient. The handiest solution, at least to slow down the dynamics of pollution and draining of supplies of materials and materials is maintenance. In the following we will explore this solution to make it as efficient and available as possible in industrial application.
