Disc piece for filtering machine and manufacturing method

The invention relates to the field of filtering machines and in particular relates to a disc piece for a filtering machine and a manufacturing method. The disc piece for the filtering machine comprises a fixing part, a first filtering part, a second filtering part, a liquid outlet and a plurality of connecting parts, wherein a cavity is formed inside the fixing part; a plurality of through holes are formed in the fixing part; the first filtering part is arranged at the fixing part and is communicated with the plurality of the through holes and the cavity; the second filtering part is arrangedat the fixing part and is positioned in a position far away from the first filtering part, of the fixing part; the second filtering part is communicated with the plurality of the through holes and thecavity; the plurality of the connecting parts are arranged at the fixing part; the liquid outlet is formed in the fixing part and is positioned in a position close to the connecting parts, of the fixing part; the liquid outle