The new ver. of Photograv (3.0) has Rabbit Lasers listed in the machine choices. There are many variables in the software that can be set by the Chinese machine owner such as resolution (.dpi), machine lens spot size, machine wattage, and max speed.
Here's what that screen looks like:
http://www.photograv.com/images/ss_selectmachine.png
So yes, Photograv will work with most any Chinese manufactured laser.