Change single key - What is the key type

Hello,

I have a MacBook Pro 13" Retina Display Late 2013 and I would like to know what is the key type of this keyboard, because I am thinking of changing some keys from its keyboard (It has a US layout and I would like to change some keys to Portuguese Layout). I've read on the internet that there are small differences in the hinge mechanism, as there are many types of key/hinge (like this website explains: http://www.thebookyard.com/apple_keycaps...)

I would like to know what is the key type in this specific model (in order for me to buy individual keys) and if I should be able to replace them myself.

Thanks in advance,

trocLas