| 摘要 |
Electrical articles, including electrical lamps and tubes, have dumet electrical current conductors and a glass enclosure sealed to the conductors. The glass enclosure may be composed entirely of a Na2O-Li2O-K2O-BaO-Al2O3-SiO2 electrical sealing glass, or may be composed of a soda-lime glass envelope joined to the conductors with an intermediate component of the sealing glass. |
