无码a级毛片免费视频内谢-高清freexxxx性国产-无码熟妇人妻av在线电影-美女内射毛片在线看免费人动物

5a2db2d677cfb.jpg


Qinhuangdao Glass Industry Research and Design Institute Company Limited (QGRDI),?which was founded in 1953, is one of the earliest major scientific and research institutes ever established in China. It is also the main inventor of LUOYANG FLOAT GLASS PROCESS OF CHINA, which owns the self owned property rights. Up to now, it is the largest and exclusive institute in China for research and design for glass industry, which is engaged not only in scientific research and design, but also in production and quality inspection. It is also the technological platform of China National Building Material Group Corporation (CNBM) and is the main part of glass business platform.In QGRDI there is a mineral processing pilot plant for float glass, State glass quality inspection and testing center and editorial department for journal GLASS, which is a national science and technology periodical on building materials.
The secretaries-general of National Insulated Glass Professional Committee, National Building Material Standardization Committee and China Decorative Glass Professional Committee are all from QGRDI. QGRDI is engaged in research and development for glass process, raw material process, fuel process, equipment and automatic control of glass production line, new glass products and processed glass etc., and undertakes engineering design, technical transformation, engineering consultation, engineering supervision and engineering contracting for various kinds of large size glass production enterprise, other building materials production enterprises, and industrial and civil buildings.
QGRDI’s high-quality achievements and developments, excellent design and good service have won widespread praise from customers. We would like to provide the best technology and top ranking glass engineering service for glass enterprises of the world. On the principle of equality and mutual benefits and being heartfelt to our customers, we would like to have a more extensive contact with and be complete sincere in cooperation with the enterprises and organizations related both at home and abroad.


? 少妇精品无码一区二区三区| 亚洲av无码一区二区二三区| 久久久久久人妻无码| 欧美日韩一区二区三区自拍| 精品免费av一区二区三区| 久久精品中文字幕第一页| 午夜福利理论片高清在线观看| 国产婷婷一区二区三区| 狠狠噜狠狠狠狠丁香五月| 无码人妻精品丰满熟妇区| 狠狠躁夜夜躁人人爽天天不卡| 久久久成人毛片无码| 欧美日韩一区二区三区自拍| 亚洲啪啪综合av一区| 国产色诱视频在线观看| 狠狠精品久久久无码中文字幕| 国产suv精品一区二区6| 精品一区二区成人精品| 精品深夜av无码一区二区| 欧美极品jizzhd欧美| 亚洲精品动漫免费二区| 国产欧美久久一区二区三区| 亚洲av永久无码精品表情包| 国产精品国产av片国产| 亚洲国产精品无码久久久秋霞2| 天天狠天天透天干天天怕∴| 久久和欧洲码一码二码三码| 亚洲综合国产一区二区三区| 又色又爽又黄的视频网站| 美女扒开腿让男人桶爽久久软件| 无码人妻丰满熟妇区bbbbxxxx| 边啃奶头边躁狠狠躁| 日韩人妻精品无码一区二区三区| 国产农村熟妇videos| 国产成人亚洲综合| 欧美精品国产综合久久| 内射少妇36p亚洲区| 国产97色在线 | 日韩| 无码免费一区二区三区免费播放| 国产农村熟妇videos| 亚洲熟妇无码av在线播放|