改良型镍-钛合金线
ISW improved super-elastic Ti-Ni alloy wire
镍钛合金器械
Nickel-titanium instruments
电子控制间断式牵引器
electronic controlled intermittent tractor
AO微型钛金属板及螺钉
AO titanium plate and screw
Nb-Ti复合微合金
Nb-Ti compound micro-alloyed
Nb-Ti复合微合金化
nb-ti compound microalloying
Nb-V-Ti复合微合金化
complex Nb-V-Ti microalloying