Look at the colloid of the filter element
　　Nowadays, the structure of filter elements is generally composed of filter paper and rubber adhesive, and there is a difference between the real and fake colloid filter elements. The rubber of the genuine filter core is good and elastic, while the rubber of the fake filter core is weak and poor in quality. It is easy to identify the method is to fold the air filter element in half, after loosen the original product filter element quickly restored to its original state, and counterfeit filter element due to the rubber texture problem, and filter paper adhesion is not good, the middle of the fold trace is obvious.
　　This article is organized by dongguan oneness filtration technology co., LTD