Originally Posted by Vyserg
There a list on the site right above the "Unit Search" tab. Clicking it should bring up another window with all the parts listed.
On top of your screen, there are 7 different big boxes to choose, which correspond to:
1. melee type enhancement - boost melee weapon range, reload and etc
2. armor type enhancement - boost hp, shield and armor.
3. shooting type enhancement - boost all range weapon type such as speed, reload and etc
4. assault type enhancement - boost ms speed, mobility and etc
5. strike type enhancement - boost mobility and fire power
6. heavy arms type enhancement - boost defense and fire power
7. support type enhancment - provide team effect type enhancement
The link I provided before corresponds to "armor type enhancement" page.
From there, let Google Translator do the rest for you
So far I have seen Arios with increased shooting speed(?) lol sounds good