
range of filter elements, filters, filter equipment and hydraulic accessories for fluid power industry. Relying on the filtration production base in Xinxiang City, Demalong offers national standard filters & filter elements, foreign filters & filter elements, filter carts and other non-standard filters, to meet different customers' requirements. DEMALONG has a superior R&D team, a professional technical team, the highest efficient sales network and a perfect after-sales service system. Our products are manufactured in accordance with the international Standards, such as ISO9001, DIN, IDF, 3A and GPM Standards. Product Introduction National standard filters & filter elements Suction filters & filter elements (WF, WU and XU) Sandwich stacking filters & filter elements (DF and DFB) Line filters & filter elements (PLF, LMT, ZU-H, QU-H, GU-H, ZU-A, QU-A, SGF, CWU and CGQ) Return filters & filter elements (RF, RFA, RFB, XNL, QYL and DRLF) Duplex filters & filter elements (SDRLF, SGF, SLLF, SMF, SRFA and SZU) Air filter breathers Filter carts Filter equipment & testing equipment Hydraulic accessories Applications Metallurgy, petrifaction, spinning, power generation & nuclear power, machining equipment, train internal-combustion engines & generators, auto engine & engineering, machinery, and so on.