The manufacturer Akerman has buiilt different grader types.
One with a tractor:
http://www.volvoce.com/SiteCollectio...er_566x228.jpg
And another interesting typ, a grader-roller-Mix:
http://www.volvoce.com/SiteCollectio...er_566x228.jpg
One with a tractor:
http://www.volvoce.com/SiteCollectio...er_566x228.jpg
And another interesting typ, a grader-roller-Mix:
http://www.volvoce.com/SiteCollectio...er_566x228.jpg