hub identification.

Trying to identify what hubs are on my bike they say formula hubs on spec list however they have no sticker or branding \ model no on them think they might be DC 51 15mm not sure. Just want to know what kind they are so I know how to service them and what tools I'll need.
Here is photos and spec list.
http://www.orangebikes.co.uk/bikes/alpine-160_am/

Possibly this
http://www.formulahubs.com/en/formula/?method=detail&aid=55

Any help appreciated thanks.