4月27日,大公国际公布评级报告,中国铁路通信信号股份有限公司主体获“AAA”评级,相关债项获“AAA”评级,评级展望稳定。大公国际资信评估有限公司通过对中国铁路通信信号股份有限公司及“通号YK01”、“通号YK02”的信用状况进行跟踪评级,确定中国铁路通信信号股份有限公司的主体信用等级维持AAA,评级展望维持稳定,“通号YK01”、“通号YK02”的信用等级维持AAA。大公国际认为,中国铁路通信...
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