We have an industrial polishing machine, kind of like a monster Lustre King.  It uses solid non-wax compound and buffing wheels that continuously rotate the ball through to make sure that it's entire surface is polished.

Unfortunately, there really is no way to duplicate the process exactly, but most reactive ball polishes work well and come pretty close to the same finish.  

There are quite a few bowlers that frequent this site who resurface their own equipment, and maybe some of them can chime in and let you know which polishes they feel are closest to our factory finish.

Jason Wonders
Visionary Bowling Products