激情综合激情,快播在线播放,一级日韩一级欧美,婷婷久久综合九色综合绿巨人,综合网婷婷,精品九九久久,人九九精品

       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.

侯马市| 灵丘县| 滕州市| 黎城县| 南通市| 宿迁市| 原阳县| 襄垣县| 喜德县| 阜城县| 璧山县| 根河市| 巴中市| 唐海县| 通许县| 中江县| 宣威市| 拉萨市| 翁牛特旗| 永定县| 民权县| 维西| 景东| 壤塘县| 惠来县| 兴山县| 广汉市| 瑞金市| 芜湖市| 宁夏| 金溪县| 平塘县| 阳东县| 许昌市| 海安县| 商丘市| 津市市| 金昌市| 太和县| 古田县| 邛崃市|