4.  Industrial Applications: Blown film technology also holds significance in the industrial sector.  Production of films used for industrial covering, protective films, and transportation protection materials rely on blown film technology to create specialized films that shield equipment and materials from external environments.

5.  Construction Field: In construction, blown film technology can produce waterproof films, thermal insulation films, etc., used for improving and processing construction materials, thereby enhancing durability and comfort of buildings.

6.  Food Processing: The food industry is another domain where blown film technology finds application.  Production of food packaging bags, food wraps, frozen food packaging, etc., all require the preparation of plastic films using blown film technology.

7.  Environmental Protection: Blown film technology can also contribute to environmental protection by producing biodegradable plastic films, reducing environmental impact.

In conclusion, blown film technology, as a versatile plastic processing method, has extensive applications across multiple domains.  By adjusting process parameters and material selection, plastic films suitable for various industry needs can be produced, providing critical material support across different sectors.  Whether in packaging, agriculture, healthcare, industry, construction, or environmental protection, blown film technology continues to innovate and evolve, offering sustainable solutions to the diverse demands of modern society.