a complete range of filter elements, filters, filter equipment and hydraulic accessories for fluid power industry. Relying on the filtration production base in Xinxiang City, Delong offers national standard filters & filter elements, foreign filters & filter elements, filter carts and other non-standard filters, to meet different customers' requirements. Delong 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 (replacement for Leemin filters)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)Famous Brand Filters & Filter Elements:Pall, Hydac, Mahle, Mp Filtri, Mann, (Epe) Eppensteiner, Stauff, Donaldson, Vickers, Argo, Filtrec, Internormen, Parker, Hy-Pro, Rexroth, Schroeder, Taisei Kogyo, Etc.Compressor filter elements:Atlas, Fusheng, Sullair, Ingersoll-Rand, Liutech, Compair, Boge, Ri Sheng, and so on.Air filter breathersFilter carts Filter equipment & testing equipmentHydraulic accessoriesApplications Metallurgy, petrifaction, spinning, electron & pharmacy, power generation & nuclear power, machining equipment, train internal-combustion engines & generators, auto engine & engineering, machinery, and so on.