记者6日从中国铁建股份有限公司了解到，由中铁十五局承建的跨长中一级公路大桥连续梁顺利合龙，这是包银高铁银巴支线合龙的首座连续梁，为后续高效推进施工奠定坚实基础。据中铁十五局项目负责人崔宝红介绍，跨长中一级公路大桥上跨省道S218线，是银巴支...
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