Windows 7 Professional (x64) - DVD (Chinese-Simplified)
http://www.ich8.com/download/view-software-592.html
Windows 7 Enterprise (x64) - DVD (Chinese-Simplified)
http://www.namipan.com/d/cn_windows_7_enterprise_x64_dvd_x15-70741.iso/909ef545ed99ef712d4946a2ef243d63fb3978a200c8f1be
Windows 7 Home Premium (x64) - DVD (Chinese-Simplified)
http://www.ich8.com/download/view-software-591.html