Frame strip and its processing and welding method used for producing quartz resonator base seat support sheet
Frame strip and its processing and welding method used for producing quartz resonator base seat support sheet
- CN 100,412,439 C
- Filed: 06/27/2005
- Issued: 08/20/2008
- Est. Priority Date: 06/27/2005
- Status: Active Grant
- EN CH
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- Pin
