... autocontrol ,spectacle. aviation,spacecraft.navigation,communication,antenna,spectacle frame ,glasses frame.2.wire gauge :0.1-2.0mm3.grade : ... technique :drawing and rolling7.standard:ASTMF20638. Expansion contraction rate in above 20%. Fatigue life achievable 107 times, damping ... very good Functional materials.9. Production can be applied in glasses frame, women's bra, mobile phone antenna, dental ...