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. Transactions. , 1,900° F. 12345678910 1 1 a Kepeated Use at 1,750°. Ist 10 2d 10 3d 10 4th 10 406 COMMEKCIAL ^ s e 7 e TIME IN HOURS Ti me: in hours
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
