As the filter element is, the filter element is the oil filter. The main principle of the filter is also the main principle of the filter. It is the purification equipment needed to purify the original ecological resources and reuse the resources. The filter element is generally used in the oil filtering, water filtering, air filtering and other filtering industries. Removing a small amount of impurities in the filter medium can protect the normal operation of the equipment or clean the air. When the fluid passes through the filter element with precision, the impurities are blocked, and the clean stream flows out through the filter element.