Assertion: y type strainer | /r/HasProperty | perforated screens
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Source sentences:
text: There are three types of screens used in Y-type strainers: perforated screens, which are formed by punching a large number of holes in a flat sheet of stainless steel; mesh screens, which consist of fine stainless steel wires formed into a mesh arrangement in a plain woven pattern (Stainless Steel Woven Wire Mesh) or in Dutch weave (Dutch Weave Wire Mesh); and duplex screens, comprised of a mesh screen combined with a perforated sheet as a backup.