The Encyclopedia Americana, Količina 17Americana Corporation, 1967 |
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Zadetki 1–3 od 80
Stran 137
... lead in that period . Since then , it has been so commonly used for the same purpose that the modern word plumber is derived from the Latin word for lead , plumbum . Beginning with the Romans , sheet lead was widely used for many ...
... lead in that period . Since then , it has been so commonly used for the same purpose that the modern word plumber is derived from the Latin word for lead , plumbum . Beginning with the Romans , sheet lead was widely used for many ...
Stran 139
... lead , Pb3O4 , is bright orange - red in color , and its two largest uses are in the production of storage batteries and metal - protective paints . In storage ... lead is made from soft lead and is the jointing material for. LEAD 139.
... lead , Pb3O4 , is bright orange - red in color , and its two largest uses are in the production of storage batteries and metal - protective paints . In storage ... lead is made from soft lead and is the jointing material for. LEAD 139.
Stran 140
... Lead Industries Association Flotation cells collect the metal component of lead ore . The storage battery industry , which uses large quantities of lead oxides , is also ... lead vapors , fumes , or dust into. 140 LEAD AZIDE - LEAD POISONING.
... Lead Industries Association Flotation cells collect the metal component of lead ore . The storage battery industry , which uses large quantities of lead oxides , is also ... lead vapors , fumes , or dust into. 140 LEAD AZIDE - LEAD POISONING.
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