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Four Siemens. Coupe transversale. fr Four Siemens Coupe transversale google be pg PA dq pouvoir Aclairantcarcel ei LIFSTpIIoOEwaFfjoBg ct result id YxDAAAAcAAJ hl fr onepage pouvoir Aclairant carcel false Charles Adolphe Wurtz PDold Uploaded with Gas technologies Charles Adolphe Wurtz Drawings of open hearth furnaces