91国内精品久久,久久久久国产精品一区,国产成人精品久久,亚洲a中文字幕,久久综合射,91久久久久久久久久久久久,亚洲综合91

       After years of scientific and technological innovations, D&Y Group has achieved fruitful scientific research results and formed a unique technological advantage and product structure. The Group is the first enterprise in China to develop spandex elastic core-spun yarn and realize industrialization, the first enterprise to use siro spinning technology in cotton spinning products, and also the first enterprise in China to develop bamboo yarn production technologies. Each year, the Group undertakes provincial and ministerial-level scientific and technological projects, and has won more than 200 honors such as science and technology progress awards from China Textile Industry Federation, the provincial and municipal governments, and the first prize in the International Fabric Design Competition. The company has applied for more than 100 design inventions, utility models and design patents, and 50 have been awarded, making the Group a star enterprise in terms of patents in Shandong Province.

德化县| 钟祥市| 辽宁省| 民勤县| 灵山县| 章丘市| 中牟县| 阿鲁科尔沁旗| 禄劝| 深泽县| 遂宁市| 海林市| 莱芜市| 新田县| 六盘水市| 阜新市| 祁阳县| 济宁市| 黑龙江省| 金山区| 古浪县| 平泉县| 惠来县| 广水市| 安阳市| 汉沽区| 湄潭县| 仲巴县| 土默特左旗| 嘉善县| 崇礼县| 绥阳县| 资兴市| 兴国县| 闽清县| 乌鲁木齐县| 都兰县| 柏乡县| 灵川县| 沂源县| 桂平市|