väikese soojuspaisumisega niklit ja koobaltit sisaldav rauasulam (54% Fe, 29% Ni, 17% Co), nickel and cobalt consisting iron alloy (54% Fe, 29% Ni, 17% Co) with low coefficient of expansion (COE)

väikese soojuspaisumisega niklit ja koobaltit sisaldav rauasulam (54% Fe, 29% Ni, 17% Co), nickel and cobalt consisting iron alloy (54% Fe, 29% Ni, 17% Co) with low coefficient of expansion (COE)