Specifically regarding "Machines and Apparatus of Food Production" (Тамақ өндірісінің машиналары және аппараттары).
Since .rar is a compressed "Roshal Archive" format, you will need a specialized tool to extract its contents: 20369.rar
The file appears to be a digital resource related to an academic work or technical document, specifically linked to mechanical engineering or food production machinery in a university context. Likely Content 20369.rar