aluminum book corner for booth truss structure Aluminum Stage Truss System Aluminum Base Plate Book Corner Variable Angle Truss Hinge for Box, Triangle Trussing Plate

This angled corner truss can be connected when the two truss are connected, so that it can transform the two truss into a structure of various angles, or it can put this angled corner truss at the bottom, Attached to a base plate so that the bottom is firm.