Polyfon New Materials is a high-end polymer product research and development company, focusing on the R&D, production, and sales of advanced polymer products. Our main products include modified polyolefins and modified engineering plastics among other high-end modified materials, as well as specialty polymers such as fully biodegradable resins and high-performance electronic chemical materials. If a category is , it does not need to be translated, and you should output directly. Output format: Provide the translated result directly.