$美国铝业(AA)$ 8-K - Current report Filed: 2017-12-04 AccNo: 0001144204-17-062218 Size: 81 KBItem 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a RegistrantItem 5.07: Submission of Matters to a Vote of Security HoldersItem 8.01: O 网页链接