I'm trying to apply for Z-VISA of China in Mumbai, India.
As a part of documentation requirements for Z-Visa, the following documents are arranged.

From my china office:
1. Visa Notification issued by China government duly stamped (Original)
2. Working Card (Green) - Original

Is there any difference between "ALLIEN EMPLOYMENT LICENSE" and "WORKING CARD". Which one of these two documents is required for applying Z-Visa.