狠狠操狠狠_わたしはおじさんに天堂_日本男女爱爱_成人年人免费看xxxxxxx_中文字幕系列一区_欧美一级视频播放_国产专区一二三sm调教_亚洲卡通动漫在线观看_国产1级视频_av中文字幕网站_91豆花在线观看_国产乱对白精彩在线播放_国产精品久久久久久免费_国产乱码精品一品二品_性久久久久久久久久久久_色图在线观看_亚洲天堂久久精品_在线看毛片视频_国产欧美网址_男人的天堂av线_国内另类在线_国产欧美日韩一级二级三级_黑夜heiye成人av_欧美国产综合视频_三级在线播放_国产免费麻豆一卡二卡三卡四卡_国产麻豆免费观看_亚洲18在线观看_看片在线观看视频免费_成人在线观看高清

The first stage The budding period 1978-1994?

Xi'an Water Supply Labor Service Team" was established with the approval of Xi'an Water Supply Corporation, mainly contracting for municipal pipeline works and emergency repair works of higher-level units.?

The second stage of growth period 1994-2007?

Officially established Xi'an tap Water Second Engineering Company, which is subordinate to Xi'an Water Company and mainly undertakes projects of municipal pipelines and water plant structures in Shaanxi Province and surrounding provinces and cities.?

The third stage Growing period 2007-2020?

Xi'an Water Supply Co., Ltd. was restructured and the company was formally returned to Xi'an Water Supply Group Co., Ltd. and mainly engaged in municipal engineering and housing construction.?

Phase IV Soaring period 2021 to present?

The company has successfully completed the restructuring as the first pilot unit of mixed ownership reform in the system of Xi'an State-owned Assets Supervision and Administration Commission in accordance with the "Three-Year Reform Program for State-owned Enterprises", and has expanded the field of intelligent water services on the basis of its original business in order to seek multi-disciplinary cooperation.?