The main products include foldable, bag-type, deep-type, and activated carbon filter elements. The filter membrane materials for foldable and bag-type filter elements include polypropylene, nylon 66, polysulfone, polyethersulfone, and Teflon (polytetrafluoroethylene). The materials for deep-type filter elements are polypropylene and polyester, while activated carbon filter elements primarily use coconut shell activated carbon. FJ Filter Products provide filtration equipment required for precision industries such as semiconductors, optoelectronics, fine chemicals, biotechnology, medical and pharmaceutical, beverages, food, automotive, energy petrochemicals, inkjet coatings, environmental protection, and traditional mechanical and chemical fields. Recently, FJ has also developed filter element products for commercial and household water purifiers