It's my understanding that these are the keys used in the deck board, but the site above says they come in 3 feels, "linear, soft tacticle, & click tactile".
There are some information which is writen in japanese:
Some information about Cherry MX key switch. [K.Tanaka] (Writen in japanese)http://park16.wakwak.com/%7Eex4/kb/tech_cherry_mx.htm
Thanks the writer!