ʻO ka paʻa paʻa he huila i haku mua ʻia me hoʻokahi a i ʻole kekahi mau carbide refractory (e like me ka tungsten carbide, titanium carbide, a me nā mea ʻē aʻe) ma ke ʻano pauka, me nā pauka metala (e like me ka cobalt, nickel) e lawelawe ana ma ke ʻano he mea hoʻopili.Hana ʻia ia ma o ke kaʻina hana metallurgy pauka....
Heluhelu hou aku