This is a new design steel gooseneck flatbed by Knapheide Manufacturing. It is made of diamond plate and smooth steel and has some unique features that are explained by Mike Soich of Knapheide Manufacturing at a Knapheide event in Livermore, CA in October 2010. Mike refers to this body as a "plug and play" body in that it is full-featured and ready to mount and go.
Knapheide is the world's largest truck body manufacturer, headquartered in Quincy, IL. Knapheide has a wide distributor network and ships product all around the world. See more about Knapheide products at www.knapheide.com.