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    PARTS REFERENCE GUIDE Service Motor Company

    Helicoid willtypically lose 50% or more from ID to ODdue to rolling process. Sectional flightingoffers same thickness from ID to OD toprovide more wear surface.2. Wear Resistant Alloy Steel. Sectionalflighting is manufactured in shortsections (1 pitch) with a form press andcannot be rolled on a helicoid formingpress due to the need to roll.[plate]2_Translate this page2_/__ 1336|31. 2_/__ [plate]Samuel Johnson in the Medical WorldThe Doctor and the [steel]Samuel Johnson has become known to posterity in two capacitiesthrough his own works as the great literary essayist of the eighteenth century, and, through Boswell's Life, as a man notoriously a medical patient with a string of physical and psychological ailments.

    Samuel Johnson in the Medical WorldThe Doctor and the

    Samuel Johnson has become known to posterity in two capacitiesthrough his own works as the great literary essayist of the eighteenth century, and, through Boswell's Life, as a man notoriously a medical patient with a string of physical and psychological ailments.[plate]Samuel Johnson in the Medical WorldThe Doctor and the [steel]Samuel Johnson has become known to posterity in two capacitiesthrough his own works as the great literary essayist of the eighteenth century, and, through Boswell's Life, as a man notoriously a medical patient with a string of physical and psychological ailments.[plate]

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