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High Hope International Inc. is a co***ny with a long history in the area of vacuum products .Our co***ny has been one of the leading manufacturer, supplier of electron tubes, vacuum capacitors, vacuum relays, vacuum tube triode, audio tube, vacuum capacitor in China. We have extensive business relations with domestic and foreign customers in the field of vacuum components. Our electron tube products range from power grid triode, tetrode, pentode to receiving tubes, thyratron, magnetron TWT and X-ray tube...
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