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First let's review the physical characteristics of light. The omnipresent light, when entering from one medium to another, will produce physical phenomena of refraction and reflection. When light enters from medium A to medium B, some of the light will...
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When we started our business as a B to B trading company 15 years ago, we found that there is always something missing in the product. Hence, we decided to start building our own brand to provide better service and...
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