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|   | HTC HIGHLIGHT TECH. CORP. - www.htcvacuum.com - Gung-Min South Road II An-Nan Area, Tainan 709, Taiwan Yelin Lin, email. Tel. | products: Vacuum Feedthrough Power feedthroughs are used to transmit either high voltage, high current or a combination of both. These products can be used for a multitude of vacuum applications including vacuum furnaces, sample heating or biasing, in-vacuum coating applications such as electron-beam evaporation, resistive heating evaporation, and DC plasma sputtering. The most concerns of a vacuum electrical feedthrough are insulation and vacuum seal. Materials used for insulation include glass, plastic and ceramic. | 
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