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No. 20 (850µm) Test Screen Tray Cloth Only wire cloth replacement section is pre-cut to fit Screen Tray frames for Gilson Testing Screen and Test-Master® screening machines. Compliance Grade stainless steel wire cloth meets ASTM E11 opening size specifications. TSA-136 coarse series screen trays require #4 (4.75mm) or larger wire cloth sections. TSA-137 fine screen tray series require #5 (4.5mm) or finer wire cloth.
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