where the string comes from

[Baurzhan Muftakhidinov <baurthefirst gmail com>]

Good day,

While using Nautilus with Kazakh l10n,
I notice that disk volumes are named
"20 GB Volume", in my case it looks like
"20 GB томы". So the unit (MB, GB) is not localized and
I couldn't find where it comes from.
I checked nautilus, glib, gvfs, udisks - no luck.

So, where these units are translated?

Thanks,