De or het farma-afdeling?

The correct Dutch article is:

de farma-afdeling

Rule Words ending in -ing: almost always de. See the rule

How to use farma-afdeling

the farma-afdelingde farma-afdeling
this farma-afdelingdeze farma-afdeling
that farma-afdelingdie farma-afdeling
our farma-afdelingonze farma-afdeling
your farma-afdelingjouw farma-afdeling
every farma-afdelingelke farma-afdeling
which farma-afdeling?welke farma-afdeling?
a big farma-afdeling / the big farma-afdelingeen grote farma-afdeling, de grote farma-afdeling