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About product and suppliers:
        Alibaba.com offers 253,767 frequence electron tube products. About 1% of these are oscillators, 1% are other active components, and 1% are led tube lights. 

A wide variety of frequence electron tube options are available to you, such as surface mount, throught hole. You can also choose from ce, ccc, and fcc. As well as from aluminum, aluminum alloy. And whether frequence electron tube is ip44, or ip65. 

There are 253,775 frequence electron tube suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and India, which supply 99%, 1%, and 1% of frequence electron tube respectively. 

Frequence electron tube products are most popular in Eastern Europe, South America, and North America. 

You can ensure product safety by selecting from certified suppliers, including 553 with ISO9001, 376 with Other, and 196 with ISO/TS16949 certification.