,

if it is plastic laminate..

“Troquelado” is definitely die-cutting, and “ranuras" are slots:

Product brochure in Spanish:

El módulo de troquelado/hojeado tiene 3 ubicaciones
que incluyen dos estaciones de troquelado con ranuras
de 11/2”, perfecto para el troquelado del lado inferior
http://www.markandy.com/literature/pdf/24037_Scout_Bro_FNL.p...

Product brochure in English:

Diecut/Sheeting Module has 3 locations including two
diecut stations with 11⁄2" slots – great for
underside diecutting
http://www.markandy.com/literature/pdf/scout.pdf

However, I can’t find a single reference to “troquelado de ranuras”. I would hazard a guess that, in your context (cover of a brochure), it probably refers to slots that are die-cut in the cover to allow for the insertion of a business card (I’ve seen many brochures and folders of this type).

Before implementing any of these suggestions, be sure to imprint the back side of the brochure with a high quality rubber stamp or laser print your practice information onto clear adhesive labels, and then ***insert two business cards into the die cut slots provided.***
http://www.patientmedia.com/howto/dryou.htm

:-)