CertificateApril 15, 2015Dear Sir or Madam:As invited by Michael S. Ireland, managing director of the 33rd International Conference on Ocean, Offshore and Arctic Engineering, Mr. ZHANG Pengnan, a student of Harbin Engineering University (HEU) is planning to go to San Francisco, California, USA as a visitor for six days, from June 8 to June 13, 2015.The personal information is as follows:Name: ZHANG Pengnan Gender: MaleDate of Birth: May 16, 1991Place of Birth: Jiangsu, P. R. Ch
