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Rights No Copyright - United States Remove constraint Rights: No Copyright - United States Subject Slag Remove constraint Subject: Slag

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    • 1932-Oct-12

    General view of workers opening the cinder-notch on the No. 2 experimental blast furnace on a burden (a load, especially a heavy one) of phosphate at the U.S. Department of Agriculture's Fixed Nitrogen Research…

    • 1932-Oct-12

    General view of a worker emptying the slag ladle on the No. 2 experimental blast furnace on a burden (a load, especially a heavy one) of phosphate at the U.S. Department of Agriculture's Fixed Nitrogen Research…