downloadable parts list and exploded view architectural information for Truss Entranceway Archway Systems A41-103. Compact Truss Arch System by edt exhibit and display truss and lds light design systems. The perfect addition to any trade show display. Don’t be fooled by knock offs structures made of steel that are heavy and hard to move around. Our lightweight trade show truss systems are lightweight, pack up efficiently and are easy to transport from venue to venue.