The high-pressure backwash sintered filter cartridge is made of multi-layer metal woven mesh sintered together, with staggered pore sizes forming a uniform and stable filtration structure. It has high mechanical strength and overall rigidity, overcoming the shortcomings of ordinary wire mesh with low strength, poor rigidity, and unstable pore shapes. Through optimized design of pore size, permeability, and strength, it achieves high filtration precision, low resistance, high strength, and good processability, with overall performance superior to ordinary metal filter cartridges. Can be pleated to increase filtration area, withstand high temperatures (≤600 °C), and resist various chemical corrosions, enabling multiple cleaning and regeneration cycles. Widely used for liquid and gas filtration in petrochemical, nuclear power, and chemical industries.