t., as indi-cated by the proportion of ferrite (white) andpearlite (black). Next in order of fineness of grain comes the C, Band A tires respectively. Here again the relativeamounts of ferrite and pearlite give an approximateindication of the amount of contained carbon, fromwhich it would appear… … No. I. At Edge of Tread. No. 2. s In. Below Tread.
Railroad cars
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