无码人妻精品一区二区三区东京热|国产精品无码一区二区三区在线看|亚洲精品无码久久毛片波多野吉衣|久99精品视频免费视频免费观看|日韩欧美国产亚洲精品字幕久久久|国产欧美精品一区二区三区日日骚|欢迎访问国产中日韩久久久噜噜久久

National-recognized Enterprise Technology Center

We make greater efforts to build the mutually cooperative information industrial research network by continuously catering to the R&D mechanism in the production process, such as, materials, application, equipment and the relevant fields, thus already having standing at the forefront of the industrial innovation.


Thus far, SDGI has 200-odd national invention patents and utility model patents as one of the drafters of many national standards of the fiber and cable industry.