Hi Jhonny ,
As Iain mentioned , catalog uses " Administration > Tools > Import Export Utility" in catalog GUI to move the offerings/forms from one catalog system to another system . You don't need to worry how those information are stored in the database .
When you export an offering ( or a service ) on the source system , you can check all those checkboxes ( including the "Include Translations" checkbox as Iain mentioned ) , then it will export everything ( including the forms which attached to this offering and also the translations ) into a file . And then you can simply import it into your target catalog system .
If you run into any issue with it , feel free to open a support case so that our support can help look into it .
Thanks, Jing