At present, multi-layer sintered mesh has been used in filtration purification, gas-solid, liquid-solid and gas-liquid separation, divergent cooling, gas distribution, air flotation transmission, fluidized bed, gas sample collection, and shock absorption, noise reduction, and resistance. Gasification and other aspects are widely used in aviation, aerospace, petroleum, chemical, metallurgy, machinery, pharmaceutical, food, synthetic fiber, film, environmental protection and other industrial fields.