Dedicated to the R&D and manufacturing of flexible steel tube armored optical cables for 15 years； Advocator of armored optical fibers and armored fiber bundle theory； Record maker of the world‘s finest flexible steel tube armored fiber unit(external diameter: 0.6mm)； Drafter of YD/T 2488-2013 - Flexible steel tube armored optical fiber cables； National high-tech enterprise； Owner of more than 30 domestic and international technology patents； Member of China Communications Standards Association；