The Encyclopedia Americana, Količine 1–30Bernard S. Cayne Grolier, 1981 |
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Stran 97
... Lead is a soft , bluish gray metal that has a bright metallic luster when newly cut or melted . However , on exposure to air it takes on a silvery gray patina . In industrial atmospheres it changes ... LEAD COMPOUNDS A wide variety of lead.
... Lead is a soft , bluish gray metal that has a bright metallic luster when newly cut or melted . However , on exposure to air it takes on a silvery gray patina . In industrial atmospheres it changes ... LEAD COMPOUNDS A wide variety of lead.
Stran 98
Bernard S. Cayne. 1 1 LEAD LEAD ! LEADBELLY - LEAF. 98 USES OF LEAD COMPOUNDS A wide variety of lead compounds are used in industry . Litharge . Litharge , or lead oxide ( PbO ) , is a yellow , crystalline compound . It is one of the most ...
Bernard S. Cayne. 1 1 LEAD LEAD ! LEADBELLY - LEAF. 98 USES OF LEAD COMPOUNDS A wide variety of lead compounds are used in industry . Litharge . Litharge , or lead oxide ( PbO ) , is a yellow , crystalline compound . It is one of the most ...
Stran 100
Bernard S. Cayne. 11 ROBERTS01 : LEAD INDUSTRIES ASSOCIATION LEAD - SHEATHED CABLE produced by a sheathing press is automatically rolled onto a large cable reel . Some lead ores , such as those from southeast- ern Missouri , contain such ...
Bernard S. Cayne. 11 ROBERTS01 : LEAD INDUSTRIES ASSOCIATION LEAD - SHEATHED CABLE produced by a sheathing press is automatically rolled onto a large cable reel . Some lead ores , such as those from southeast- ern Missouri , contain such ...
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