I was browsing from a different computer this morning, so didn't have all my bookmarks.
Searching for "PTO chippers" brought up quite a few look-alikes - look a lot like the 
WoodMaxx, just different paint and PRICE. 
OBVIOUSLY 
WoodMaxx isn't the ONLY importer of these, they probably do little more than add their stickers, as do their competition.
Same old same old I guess, Dodge/Mitsubishi  Ford/Mazda JD/Kukje 
 
Example;
PTO Wood Chipper with Hydraulic Power Feed
about $250 UNDER the 
woodmaxx price.
I have NOTHING against 
Woodmaxx, Jinma, or anyone else.
Just pointing out that the product APPEARS to be somewhat generic and there is some price competition out there.