warmly congratulate xinglu science and technology
时间：2021/4/3 13:53:40 浏览：107次
the g20 qingdao–yinchuan expressway, also known as the qingyin expressway (code name: g20) , is a 1,610-kilometer highway linking qingdao city in shandong province with the ningxia hui autonomous region city of yinchuan. construction started in april 2003 and completed in march 2006 with six lanes in both directions, along the route through weifang, zibo, jinan, shijiazhuang, xingtai, taiyuan, lüliang and other cities. g20 qingdao–yinchuan expressway, a expressways of china that runs through the northern part of the chinese mainland, is the largest and longest national highway artery under construction during the 10th five year plan period.