Truss certification: TUV, CE,ISO9001 certificated Truss accessories: Base, hoist, box corner,spigot and more Truss length: 0.5m/1m/1.5m/2.0m/2.5m/3.0m/3.5m/4.0m Usage: Trade show,Fair,Vocal Concert ,ect. Main tube: 50* 3mm Warranty: 5 years Product Name: Easy Frame Aluminum ...