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The video tutorial introduces the autoclave, a machine that uses pressure to compress materials. It explains the components and functionality of the autoclave, including a vacuum bag. The tutorial includes an interactive segment with questions and actions, providing a hands-on understanding of the process. The video concludes with a summary of the autoclave's role in compressing materials.

Describe the significance of pressure in the operation of the autoclave.

What materials are mentioned in relation to the autoclave and their role?