| 摘要 |
Spectacle frames having one or more components such as a bridge, nose rests and ear pieces of martensitic NiTi, NiTi nobium, NiTi iron alloy made by means of plastic deformation starting from a 20% work hardening raised by hammering up to 50% so that the final section of the material so treated maintains, within a range of temperatures from -50° C. to +70° C., sufficient elasticity and flexibility for adapting the frames to the different facial forms of users.
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