免费视频www在线观看网站_亚洲.COM_亚洲小说网_中文字幕久久人妻舔少妇_国产人妻无码_日本综合久久_你懂的日韩欧美成人无码_白洁av_熟女野战_亚洲丝袜在线一区_几个美女沟厕小便各种大屁股_夜夜干夜夜爽_久久久性爱片_久综合_久久中文在线

 

    After reviewing by Henan Provincial housing and urban and rural construction office expert committee and public by the Internet, my company obtains Henan provincial construction methods, construction methods’ name is ‘light curing hose lining (UV - CIPP) pipeline repairing method’. The above methods gained shows that our company scientific research achievements has received government fully affirmation and recognition, and also shows the scientific research strength of company pipeline repairing, meantime make preparation for the future continuing to declare the national methods, and lay the foundation for declaring the government projects, science and technology brand and add construction research achievement.