1) Welcome to LP101 deetS!
2) You might want to fill out your profile. This will save you some time(you don't have to write your country in every post

) and is considered good behavior in this forum. This is mostly due to differing locks, laws, ... in different parts of the world.
3) I don't know which brands are common in france, but I'm pretty sure they are mostly 5-pin pintumbler locks.
4) Please check out some commonly used brands in your area, If you can give us the names we should be able and willing to give you some info.
5) Your english is fine
6) Searching is good for you! (Tm)
7) have fun and keep on picking (you do pick, do you?)