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Quality glasses of true and false recognition

Qualified metal Cheap Oakleys Frogskins Sunglasses Outlet frames, surface finish, no scratches, two mirrors circle the same size; the components work fine, delicate soldering points. Quality soft plastic frame should have a hard, feel moderate strength. Regular manufacturers of eyeglass frames are marked with specifications, size, grade and so on.
Produced with ordinary glass lenses, side view multiple green, this glass transmittance rate, the material is uneven, containing more impurities, streaks, bubbles, etc., mostly flat convex or plano-concave type.
Lens surface shape should be the rule, there should not be such as spiral. Recognition approach is hands holding rack placed in front of the convex lens outward, moving slowly up and down, observe distant objects from the lens, if the majority of the object is stationary, but locally corrugated beating phenomenon, indicating the uneven surface of the lens, the presence .
Discount Oakleys Flak Jacket Sunglasses Cheap Sunglasses are plain mirror, not with the vertex. If dizziness, nausea and other symptoms should be aware that after wearing the lenses appears vertex, When the edge of the plain mirror of unequal thickness, depending on the material displacement phenomenon occurs after wearing.
Some people like to wear crystal glasses to reveal the identity of the noble, in fact, the optical properties of far less quality crystal lens optical glass, advised consumers not to wear.
Consumers matching Tiffany and Co Key Necklace Jewelry Outlet glasses, it is best to have regular access to the store to buy a production license, obtain invoices and repair, replace or return the certificate. Quality problems encountered can be made to the consumer associations or technical supervision departments to solve.

honey618 25.02.2014 0 528
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