Hi Darijan - Oh and welcome.
I was not implying that Chinese locks are all crap. They make some very fine locks. A cheap Chinese lock is just a cheap lock made in China. Like stated in a previous thread, you get what you pay for.
What I have found is that when I have tried to find information on a particular brand of Chinese lock - I can't.
A lock made in the same factory has many different names. A good example are the Chinese disk locks - all different names but the same lock.
I asked about the quality of the cylinder because I have some that look very nice but the metal is usually not very good, like "Hardened" is stamped on the shackle but you can scratch it with a pick and the keys don't look like quality European lock keys.
Anyway, It was just my guess. The reason that made me guess "Chinese" is that information about it is hard to find.
Sorry if this is a bit of a ramble, It's early and I haven't had my meds yet.