Full-flow , by-pass and composite filter element are composed of the full-flow filter element and by-pass filter element.

As for full-flow filter element , filter flow resistance is small but the filter accuracy is not high.

By the smaller flow resistance of the full-flow filter element to ensure constantly supply of lubricating oil, by the high precision by-pass filter element filter impurities. At the same time, the filter cartridge using a new type of material, the capacity of ash is higher than the traditional materials, it can fully meet the requirements of modern engines, but because of high technological content, there are small amount of filter manufacturers in domestic market.