Baoji Refractory Metal Developer Co.,Ltd [China]

WTH7 can be used for making electron tube, the hook of emitting tube, spring, high temperature electrode and negative electrode of light air discharge.WTH10、WTH15、WTH20、WTH40 can be used for making a negative electrode and railing electrode of electrode and filament which is against vibration http://www.rmd1994.com