Sintered fiber cartridge is made from stainless powder by die pressing, high-temp sintering and monolithic forming, with high strength, high-temp and corrosion resistance, uniform pores, good permeability, cleanable, weldable and machinable. Widely used in catalyst recovery, chemical, pharma, beverage, food, metallurgy, petroleum, environmental and fermentation fields for gas-liquid filtration, dust removal, sterilization, oil mist removal, silencing, flame arrest and gas buffering.