All The parts look to be from Damitz, they have the same picture on their website. I was very close to buying an O&K RH 6.6 but after some research, turned out to be not strong enough and the space for batteries is limited to only one size, If this one has the same setup it will not be on my list either. I love the look, the Hydraulic drive and turn table, but I think I will go with a Liebherr 944B instead. Just seems more powerful and stronger.
http://www.youtube.com/watch?v=bdZYqkM1A_o