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ASTM B80

thread177-303901

ASTM B80

ASTM B80

(OP)
In the test bar figures for the Magnesium-Alloy Sand Castings specification, a 3.25"x3.25" screen with no.6 perforations is specified, as well as a filter - 2 - 3x2x7 ply wire mesh. What are these made of, or where can I find more info about these mystical filters?

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