1, a sintered metal fiber filter fine filter of metal fiber sintered filter fine filter, the filter element made of stainless steel metal fiber (316L) made of porous sintered compacted depth-type filter made of folded, in the same dimensions filter area is 3-4 times that of a conventional tubular filter element filter. Which has a large capacity, low pressure drop, washable regeneration, long life and other advantages. Filtration precision: 0.3μm-100μm. 2, the metal powder sintered filter fine metal powder sintered filter core filter fine filter is porous sintered tube powder metallurgy, materials are bronze, stainless steel, titanium, nickel, etc., with high temperatures, corrosion resistance, uniform pore size and stability, good air permeability, high mechanical strength, washable regeneration characteristics. Filtration precision: 0.01μm-100μm. 3, sintered metal mesh filter fine filter mesh metal sintered filter fine filter filter element is a multi-layer metal woven wire mesh, pressed and laminated by a special vacuum sintering process produced, with high strength and overall a novel porous medium porous rigid structure, which overcomes the ordinary woven wire mesh low intensity, poor rigidity, lack of mesh shape instability, cleaning regeneration function is excellent, and the ability of the material pore size, permeability and strength reasonable matching and design, making it the overall performance greatly improved. Filtration accuracy: 3μm-100μm.