Exam (elaborations)
Optician License Exam | 183 Questions and Answers(A+ Solution guide)
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Nylon - Material that some frames are made out of. Very elastic, especially when placed in water. Carbon Filter - Materials used to make frames containing threads of Carbon. Frame will be sturdy, slim, and lightweight. Frames will not be bendable at all. Usually only used for frame fronts. Polya...
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