De or het emaillering?

The correct Dutch article is:

de emaillering

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

How to use emaillering

the emailleringde emaillering
this emailleringdeze emaillering
that emailleringdie emaillering
our emailleringonze emaillering
your emailleringjouw emaillering
every emailleringelke emaillering
which emaillering?welke emaillering?
a big emaillering / the big emailleringeen grote emaillering, de grote emaillering