Fiber optics cable 3) phatik (fiber-optic cable) consists of Group of fibers made of glass or plastic that is small, about hair. Each line has a kaenklang (the core) that is wrapped with glass fiber material, another type, called the cache ล็ดดิง (cladding) and covered with insulating layer to prevent another shock and tear. For example, fiber optics cable phatik
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