Optical power (also referred to as dioptric power, refractive power, focusing power, or convergence power) is the degree to which a lens, mirror, or other optical system converges or diverges light.
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T&M Rubber is a manufacturer of precision rubber gaskets, seals ,washers, spacers, and custom products. We can tailor rubber to meet any rubber standard.
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Microclinic International prevents and manages disease epidemics in underserved communities around the world. We put the power of health directly into the hands of the people who need it most.
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At Pacific Antique Clocks we are specialists in fine antique English longcase grandfather clocks, wall clocks and bracket clocks, French decorative mantle clocks, and other fine quality antique
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Wenzhou Deki Valve Co., Ltd: We're well-known as one of the leading gate valve, globe valve, check valve, butterfly valve, ball valve enterprises in China. Our factory offers API approved high quality products for refinery, power plant, petrol chemical and oil&gas industry. Also, fast delivery is available.
