1. Low price filter paper is used to make filter element. Due to its large aperture, poor uniformity and low filtration efficiency, the impurities harmful to the engine cannot be effectively filtered out, resulting in early engine wear.
　　2. Low quality adhesive is used, and the amount of adhesive is very small, which is not resistant to oil, and cannot be firmly bonded, resulting in short circuit at the bonding point of filter element; Or the use of staples at the joints of filter elements, can not be sealed and short circuit, so that a large number of harmful impurities into the engine, reduce the life of the engine.
　　This article is organized by dongguan oneness filtration technology co., LTD