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Improvements in the Removal of Scale and Oxide from Metallic Surfaces.
Improvements in the Removal of Scale and Oxide from Metallic Surfaces.
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机译:从金属表面去除水垢和氧化物的改进。
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23,664. Coles, S. O. Cowper-. Oct. 24. Hydrogen.-Pure dry hydrogen, for use in removing scale or oxide from metal articles, is produced electrolytically, and, after leaving the generating cell, is passed through sulphuric acid and over calcium chloride.
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