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COMPOSITION FOR SOLUBLE FUSES, MEANT FOR ACTUATING MINES
COMPOSITION FOR SOLUBLE FUSES, MEANT FOR ACTUATING MINES
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机译:可溶性保险丝的组成,意在促成矿山的形成
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摘要
the invention refers to a composition for mains soluble for shareholders of the mines. the composition according to the invention is constituted of: 96: 98% boric acid, 2...4% polyvinylpyrrolidone and up to 0.07% rosin, the percentages being by weight.
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