Milling machine

I would like to use the services of a milling machine (similar type
to the modelmaster with rotary table) that can mill simple rings
(ie: bands with a raised lip) in differnt finger sizes. I understand
that is called “bureauing”

I use JewelCad software.

Would there be anybody out there that could offer that service (I
already use the services of a ModelMaster 2 rapid prototyper)

Thanks
Peter shakes