$国家信息基础设施控股(NIHD)$ 8-K - Current report Filed: 2019-03-18 AccNo: 0001193125-19-077406 Size: 4 MBItem 1.01: Entry into a Material Definitive AgreementItem 2.02: Results of Operations and Financial ConditionItem 8.01: Other EventsItem 9.01: Financial Statements and Exhibits 网页链接