Ngwa
Nke a igwe adabara ịgbado ọkụ nke gold, ọlaọcha, titanium, nickel, tin, ọla kọpa, aluminum na ndị ọzọ metal na alloy ihe onwunwe, nwere ike nweta otu nkenke ịgbado ọkụ n'etiti metal na dissimilar ọla, e ọtụtụ-eji aerospace ngwá, shipbuilding, ngwá ọrụ, igwe na ngwaahịa eletriki, ụgbọala na ụlọ ọrụ ndị ọzọ.
