More Details: 

YOEC is a high-tech enterprise with optoelectronic technology as its core. The company is mainly engaged in R&D, production and sales of five kinds of products, such as special optical fibers and cables, special optical devices, new materials, high-end equipment and optoelectronic systems, and provides customers with measurement calibration and testing services of optoelectronic first-class metering stations in national defense science and technology industry.