De or het lasermarkering?

The correct Dutch article is:

de lasermarkering

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

How to use lasermarkering

the lasermarkeringde lasermarkering
this lasermarkeringdeze lasermarkering
that lasermarkeringdie lasermarkering
our lasermarkeringonze lasermarkering
your lasermarkeringjouw lasermarkering
every lasermarkeringelke lasermarkering
which lasermarkering?welke lasermarkering?
a big lasermarkering / the big lasermarkeringeen grote lasermarkering, de grote lasermarkering