The three in one filtration equipment is a filtration device that integrates filtration, washing, and drying. The 2-in-1 filtration equipment has fewer drying processes compared to the 3-in-1 filtration equipment, and is a filtration equipment that integrates filtration and washing. Sintering mesh plays a role in filtering and supporting materials in three in one and two in one filtration equipment. The three in one and two in one filter discs have high requirements for the sintered mesh, with uniform aperture and a flat mesh surface. The flatness should not exceed 2mm on a 1000×1000 surface, and there should be no pits, foreign objects, or contamination on the surface; No foreign objects should fall off, and ultrasonic cleaning is required thoroughly. The sintered mesh often uses a six layer sintered plate mesh, with a sintered mesh thickness of 3.5mm and an accuracy of 15-25 microns.