Thread:Homuhomu123/@comment-25283969-20150525220819/@comment-25779449-20150526051917

Haha... gotcha

The upper two (Akashi Lv50 and Lv107) represent to which star level the 12.7cm can be improved by using 10 screws only. The author tried improving ten such turrets.

The lower two might be more useful, they show how many screws in total were consumed to improve a 12.7cm to star max.