1. Made with high-quality imported filter paper, offering a large filtration area and excellent performance, effectively ensuring the cleanliness of the filtered engine oil.  
2. The adhesive used to bond the metal cap and filter paper is of high quality, ensuring a reliable seal and preventing unfiltered oil from leaking into the engine.  
3. The bypass valve opens precisely. When the filter paper is clogged, the bypass valve opens in time, ensuring the engine has sufficient oil supply and operating normally.  
4. The aluminum ingots used and the manufacturing process are free from any contamination, providing high strength and excellent toughness.