Mechanical processing is a common manufacturing process with a wide range of applications, including but not limited to the following aspects:

1. Mechanical manufacturing: Mechanical processing plays a crucial role in manufacturing various mechanical equipment, components, and tools. From automobiles, aerospace, ships to household appliances, agricultural machinery, etc., all require mechanical processing to obtain finished products.

2. Electronic components: The manufacturing of electronic products cannot be separated from precision mechanical processing. For example, various chips, circuit boards, and other components in electronic products such as mobile phones, tablets, and televisions need to be manufactured through mechanical processing.

3. Medical devices: Medical devices have very high requirements for accuracy and quality, so mechanical processing is widely used in medical device manufacturing. For example, surgical instruments, prosthetics, artificial joints, etc. are all produced through mechanical processing.

4. Aerospace: The aerospace industry requires extremely high precision and quality of components, therefore mechanical processing plays a crucial role in aerospace. Aircraft engines, aircraft structural components, etc. all require mechanical processing to be completed.

5. Energy field: The energy development field requires a large amount of equipment and components, which need to be produced through mechanical processing. For example, oil drilling equipment, wind power generation equipment, nuclear power equipment, etc. all need to be manufactured through mechanical processing.

6. Construction industry: Various building structures, equipment, and tools in the construction industry need to be produced through mechanical processing. For example, construction machinery, building steel structures, building molds, etc. all need to be manufactured through mechanical processing.

7. Automotive industry: Automobiles are one of the most widely used fields in mechanical processing applications. Various components in automobiles, including engines, transmission systems, braking systems, and body structures, need to be manufactured through mechanical processing.

In summary, mechanical processing plays an irreplaceable role in modern industry and is widely used in various fields. With the advancement of technology and the improvement of craftsmanship, mechanical processing technology is constantly developing and improving, providing higher quality processing products and services for various industries.