The product has the characteristics of high filtration efficiency, high oil-water separation efficiency, and high pollutant holding capacity, and can also produce single-layer and multi-layer composite filter materials. For biodiesel, ultrafine fibers are used for multi-layer composite, which has excellent oil-water separation performance and impurity filtration performance.

Longde company can produce different properties fuel filter papers with high precision .Newly developed fuel filter papers with high precision, through the detection, the filtration efficiency of 5 micron particle size is up to more than 95%. Newly developed high precision base paper of composite filter paper can completely replace similar foreign products.