JIENENGDA company is the sub-company of Beijing Electron Tube Factory?and we in charge of the exportation to all the world. Our products spread all over the provinces and cities in the whole country , export to the areas , such as South and North America , Europe , Asia ,etc. in enormous quantities. The company develops and produces the cermets tube mainly, heat not in charge offing ultra-high frequency electron tube, microwave tube, the industry high frequency not little and ceramic, in last room, the pottery not special not fatherless, etc. products vacuum not high-pressure. Apply field of heating etc. to the broadcast , TV , communication , navigation , electricity , metallurgy , mine , chemical industry , industry high frequency extensively, once made contributions for the national satellite launching , Beijing electron-positron collier ,etc. most advanced project of guided missile. There are 16 products to obtain the above quality product title of provincial level and ministerial level in the company, one among them obtains the gold medal of national quality, 4 obtain the silver medal of national quality.