People mostly hope inner and outer carriers can reduce the temperature of optical fiber and ensure their reliable operation in foreign markets, but due to using inner and outer carriers in china all sorts of problems have happened. On the basis of using inner and outer tube, by changing flexible winding pipe to semi-flexible winding pipe out of fibers, our company firstly have designed and produced a single carrier, this structure greatly reduce the costs of the protective tubes and protection for optic fiber is very stable. By summing experience of single carrier application in twenty years, our company has designed and produced a special single carrier again. This structure is better able to protect the optical fiber, effectively reduce the accumulation of dust and has a wider range of observation.
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