, Ltd was founded in 2004 and have more than 21 years experienced leading manufacturer of fiber optic cables & accessories in China. The fiber optic cable industry in China has solidified its position as a global powerhouse, driving the expansion of high-speed networks, 5G infrastructure, and smart cities. GL FIBER' fiber optic cable has a construction of optic fiber, loose tube or tight buffer or semi-tight buffer, strength members (FRP, Steel. Product Details: Fiber optic cables are composed of optical fibers, plastic protective sleeves, and plastic sheaths.