Cov Khoom Xaiv:
Xaiv cov khoom siv zoo qub tungsten steel khoom, uas muaj lub hardness hardness, tsis yooj yim los hnav thiab tsis yooj yim tawg.
Cov Khoom Qhia Khoom:16Trees, 20 degrees, 26 degrees, 60 degrees, 60 degrees, thiab lwm yam ntawm cov qauv kev txhawb nqa kev lag luam thiab kev hloov kho.
Cov khoom lag luam tau:
Ua los ntawm cov roj ultra-nplua hmoov, nrog rau ntom ntom zoo, zoo tougness, ntse hniav.
Siv tau kev lag luam:Tawv, shoemaking, textile daim ntawv kev lag luam, textile tshuaj fiber ntau, autometive ntaub pua plag ntaub so taw thiab lwm yam kev lag luam.