Refining questions

Hi guys,
Does anyone know what is the difference between the different refining services and whats they are called?

THX

 

Can you explain more? Thats too ambigous.

 

If you mean the different levels of refine then it's E, D, C, B, A and S. The difference is how hard it is to do, how much it costs and how much it increases your attack with S giving the highest boost that people commonly buy refine service for but also costing the most and being hardest to do while E is the opposite of S. 1-9 barely give any boost at all and are easy to do so people don't pay for them.

 

Anyone smokes that Cali finest kush?

 

idk the services so well. I know the S, A+ i think,. Ok, lemme say it this way, which one is more popular? (and skills that i have to et for it ^.^)
Thx

 

<===3

 

+B is popular because it cost less than +A,+S. Also damage gap is closer to +A,+S(talking about weapons).
About the refine values:-
E=+10, D=+11, C=+12, B=+13, A=+14, S=+15
Here's the detailed version:-

Ex:
Refining value +12 = Weapon ATK × 2.56
(Edit)More examples:-

Spoiler