四川成渝(601107/00107)发布公告,四川成渝高速公路股份有限公司与中国华西企业股份有限公司、四川省交通建设集团有限责任公司、四川公路桥梁建设集团有限公司、四川高路信息科技有限公司组成联合体于2025年8月6日与招标人签署《投资协议》。成雅扩容项目路线全长159公里,项目投资估算285亿元。其中,成雅高速原路扩容长135公里,起点至青龙场段35公里,设计速度120km/h,双向8车道,路基...
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