$美国石绵(USG)$ 8-K - Current report Filed: 2017-05-15 AccNo: 0000757011-17-000040 Size: 436 KBItem 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 8.01: Other Eve 网页链接