Bibframe Work
TitleProduction. Milling machines and machine castings. A new heat-treating furnace being installed in one of the country's leading machine tool plants. Heat-treating is one of the most important steps in the manufacture of sturdy, accurate moving metal parts, because a given piece of metal can be made either hard or soft, brittle or tough, according to the way it has been heated, quenched and cooledTypeStill ImageCollectionPlaceUnited States--Mid West.Authorized Access PointPalmer, Alfred T. Production. Milling machines and machine castings. A new heat-treating furnace being installed in one of the country's leading machine tool plants. Heat-treating is one of the most important steps in the manufacture of sturdy, accurate moving metal parts, because a given piece of metal can be made either hard or soft, brittle or tough, according to the way it has been heated, quenched and cooled