這種透明石英棒具有純度高，耐高溫性強以及熱膨脹系數(shù)低的特點，用于單端鹵素燈的壓橋棒，光纖照明、石英纖維的制造以及半導體硅片的加工等，主要規(guī)格見表I,表II。

    This clear quartz rod has high purity, elevated temperature characteristics and low coefficient of thermal expansion. It serves as the material of the bridging rod for single end halogen lamps, fiber optic lighting, quartz making, wafer carriers and push rods in semi-conductor industry. For detailed specifications and technical data please see table I,table II.

尺寸公差 Dimensional Tolerance

直徑公差(mm) OD & Tolerance	橢圓度(mm) Euipticity
2.0±0.1	0.10
2.5±0.1	0.10
3.0±0.1	0.10
4.0±0.15	0.15
5.0±0.15	0.15
8.0±0.2	0.20
10.0±0.2	0.20
15.0±0.2	0.20
19.0±0.3	0.30