Za-Glass posiada w swojej ofercie: Kieliszki do wódki, wina, koniaku, szklanki i literatki, kubki do herbaty, drinki do wina i koniaku, Wazony do kwiatów.

This is now defined in the Language [lang].xml file in the Language metadata settings. If you are having locale problems such as dates do not appear in your language for example, you might want to check/edit the entries in the locale tag. Note that multiple locale strings can be set and the host will usually accept the first one recognised.