$美国铝业(AA)$ 8-K - Current report Filed: 2018-01-04 AccNo: 0001144204-18-000704 Size: 1 MBItem 1.01: Entry into a Material Definitive AgreementItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a RegistrantItem 3.03: Material Mo 网页链接