$IPG光电(IPGP)$ 8-K - Current report Filed: 2017-02-14 AccNo: 0001111928-17-000034 Size: 378 KBItem 2.02: Results of Operations and Financial ConditionItem 5.02: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of C 网页链接