Soldering lead pipes with lead
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Article
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1913
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Elsevier Science
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English
β 64 KB
Fireproofing and Insulation of Wood. M. DE KEYHEL. (Rev. Chim. Ind., xxiii, I52.)--This is a discussion of principles, methods, and materials, from which the conclusion is reached that impregnation under pressure is the most efficient method. As a general principle each species of wood requires a