Pakistan and Irak centrifuges 

There is some interesting information on centrifuge types in an 15 years old Atomic Scientist article: 

The article mentions:
 Ultra-Centrifuge Nederland (UCN),
 CNOR machines, 2 separative work units
 SNOR, 5 separative work units
 Urenco consortium
 G-1 centrifuge, between 2 and 3 separative work units per year
 G-2, 5 to 6 separative work units
It is believed that most of Pakistan's centrifuges are based on the G-2 design.