which property of the material is cansidered to
make
spectacles
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Step-by-step explanation:
Spectacle frame materials
Both PVC and titanium are usually hypoallergenic. Most plastic glasses are made of zyl (also called zylonite, acetate and cellulose acetate) or propionate. Other materials used in plastic frames include polyamide, nylon, polycarbonate, carbon and Optyl (a brand of epoxy resin).
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Answer:
eyeglasses is the best.
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