Vintage Cateye Sunglasses Women Ocean Color Lens Mirror Fashion Sunglasses Female Brand Design Metal Frame Glasses UV400
Packing:1pc/opp bag,20pcs/papeir box,400pcs/export carton
Sample Time:7-15 days for custom sunglasses
Production Time:30-45 days after receiving deposit or full payment
Payment Terms:T/T,L/C,Credit,Western Union,MoneyGram,AlibabaEscriw,Paypal
A general resin lens is a thermosetting material, that is, the raw material is in a liquid state, and after heating, a solid lens is formed.
The PC film is also called "space film" and "cosmic film". The chemical name is polycarbonate and it is a thermoplastic material.
That is, the raw material is solid, and after being heated, it is shaped into a lens, so that the finished lens is deformed by excessive heat and is not suitable for high humidity and heat.
PC lens has strong toughness and is not broken (2cm can be used for bulletproof glass), so it is also called safety lens. Specific gravity is only 2 grams per cubic centimeter.
I think, you must have heard such a teaching from an early age "Never look directly at the sun, because its light is extremely dazzling.
" Long-term exposure to bright ultraviolet light (such as sunlight) is very dangerous, and if not protected, it can cause many eye health problems and even blindness.
Sunglasses not only protect your eyes, but also protect your skin around your eyes. It is well known that the skin around the eyes is very fragile.
If you are a beauty person, you must know that because the skin around the eyes is particularly fragile, they need more care than other parts of the body. Therefore, sunglasses can protect two things at the same time - eyes and skin around the eyes!
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