H.H. Robertson Floor Systems, Ambridge, Pa., has been chosen to provide its in-floor wire distribution system products for four new casinos across the U.S. The projects are: Hollywood Casino, Perryville, Md.; Fair Grounds Gaming & Raceway, Hamburg, N.Y.; Jackson Rancheria Reconstruction, Jackson, Calif.; and Manchester Point Arena Casino, Point Arena, Calif. H.H. Robertson Floor Systems is a division of CENTRIA, Moon Township, Pa.