National Police special 3912 U.S. men's polarized sunglasses, aluminum-magnesium alloy lens Polaroid
Reference price of other stores to shop more than 200 red a 5 diamond ultra ultra small profit as long as 80 $,ray ban sunglasses outlet even made a test piece + screwdriver many buyers wonder why most other stores sell a lot more expensive than I, what is the same as you answer : Actually, there is little genuine rather vague concept! on the Internet, of not less than $ 2780 is totally authentic! completely authentic is the so-called manufactured in Italy and then flown to China, and I shop in China this police Made in Italy after the introduction of assembly line manufacturing, because eliminating a lot of import and export, so the price much lower, but the quality and completely genuine quality is exactly the same! shop selling so cheap is to punch drill, and now just want to accumulate more customers, not to put the most profit first! price does not drop the gun quality color black magnesium alloy magnesium alloy is generally the main factor is $ aluminum, then mixed a small amount of magnesium or other metal materials to enhance their hardness. By itself is metal, its thermal conductivity and strength is particularly prominent. Aluminum-magnesium alloy hard and light weight, low density, good heat resistance, compression is strong, can fully meet the highly integrated 3C products, light, micro, and drop collision and electromagnetic shielding and heat dissipation requirements. Its hardness is several times more than traditional plastic case, but weighs only one-third of the latter, often used in high-end ultra-thin notebook or smaller shell. Moreover, silver magnesium alloy casing makes the product more luxurious, beautiful, and easy to color, surface treatment process can be turned into personalized powder blue and pink, the notebook considerably, which is plastic and carbon fiber can not be compared. Al-Mg alloy which has become the first choice for portable notebook shell material that the majority of notebook manufacturers are using aluminum-magnesium alloy casing technology. Disadvantages: not very strong magnesium alloy wear-resistant, high cost, relatively expensive and difficult than the ABS molding (stamping or casting process needed), so the laptop is generally only used in the aluminum-magnesium alloy top cover, it is few models with the aluminum-magnesium alloy to produce the entire case. Polarized sunglasses What are the benefits of driving the eyes: If you exercise the extension of the traffic in the WAN, you will not be from the road and in front of the sun and number of vehicles astigmatism, reflective distress; hook fish: the next wave in the sun shine, but you did not feel right, but feel comfortable Happy: reflective gone; skiing time: the vast Yukino, you do not have to worry about reflective and ultraviolet, you can enjoy the gliding; when it rains: water cross flow of road traffic signs clearly presented in your eyes; vacation time: more UV is effectively blocked, so you to enjoy this rare leisure time. Polarized lenses outstanding features: (1) between 380NM-780NM visible wavelengths between, we see the general sunlight during the day, from red, orange, yellow, green, green, blue, purple, seven color mixture, and the UV wavelength 380NM, is a naked eye can not see the harmful rays can cause eye conjunctivitis, cornea if the long-term exposure, it could lead to cataracts, polarized lenses and efficient filter layer 100 % filter out ultraviolet (UVA, UAB, UVC). (2) The polarized lenses eliminate glare: reflected light, light, glare. Reflected light and light everywhere, such as automotive glass, water, snow and road glare, or light from the sun’s direct interference with the human eye when the vision that people can not see objects, usually tinted sunglasses can completely eliminate these annoying light, polarized lenses able to completely eliminate all glare, reflected light and glare, the middle layer of the thin-film polarizing lens column, like window blinds, all kinds of chaotic light, such as retroreflective reflector, glare or direct strong intensive light are polarized by a small barrier on the outside column, so that the light into parallel light entering your eyes. (3) to strengthen the surface of the lens: high-tech polarized lenses after surface hardening treatment, than several times stronger than the Polaroid anti-wear, anti-scratch ability. (4) General staining difference between film and polarized lenses: the general market only through glasses colored dyeing process, dye their glasses dim the glare of sunlight, reflected objects light does not light shielding effect and other clutter, people can not see the object. Polarized lenses able to eliminate all light objects reflect light, just let the light through a single direction, so that vision is more clear, more natural to look at things, see the gorgeous natural.