Since .rar is a compressed "Roshal Archive" format, you will need a specialized tool to extract its contents:
Specifically regarding "Machines and Apparatus of Food Production" (Тамақ өндірісінің машиналары және аппараттары). 20369.rar
Newer builds of Windows 11 can now open and extract .rar files directly in File Explorer without extra software. 20369.rar
Based on academic records from the Alma-mater Digital Library , this specific archive is associated with authors and G.Zh. Bimbetova . The archive likely contains: 20369.rar
It is indexed as a part of the "Works of PPS" (Faculty/Staff works) for the South Kazakhstan University. How to Access the Content
Always exercise caution when downloading .rar files from unknown sources, as they can sometimes contain malicious content intended to harm your device.