Since the mesh holes of each layer of the stainless steel sintered mesh are interlaced to form a uniform and ideal filter structure, it not only overcomes the shortcomings of ordinary metal mesh with low strength, poor rigidity, and unstable mesh shape, but also can filter materials Reasonable matching and design of pore size, permeability and strength characteristics, so that it has excellent filtration precision, filtration impedance, mechanical strength, wear resistance, heat resistance and processability, and its comprehensive performance is significantly better than that of sintered metal Powder, ceramic, fiber, filter cloth, filter paper and other types of filter materials.