Montresor & C. s.r.l. Since the sixties, the company, which is based in Villafranca (VR), has been producing, marketing and installing edge-polishing machines for finishing marble, granite, porcelain and synthetic materials. The extremely high levels of specialist knowledge acquired over the years coupled with a continuous focus on technological research have made the Montresor brand synonymous with excellence among manufacturers of edge-polishing machines.