Dab tsi ua rau tungsten kim heev?
Tungsten yog los ntawm ntau qhov chaw hauv cov xwm txheej xws li ore deposits, uas yuav tsum tau mined, ua thiab refined ua ntej nws yuav siv tau nyob rau hauv cov hniav nyiaj hniav kub ntau lawm. Cov nqi cuam tshuam nrog cov txheej txheem no ua rau ntau tus nqi tag nrho ntawm kev tsim cov tungsten rings.
Dab tsi ua rau tungsten kim heev?
Tungsten txheej txheem