Aluminum Truss, Folding Truss, Roof Truss manufacturer / supplier in China, offering 400*400mm Aluminum Truss Lifting System High Load-Bearing for Performance Outdoor Wedding Decor Display Dinner Party Banquet, Aluminum Bolt Truss Customized Star Shape Truss for Concert Event, High Quality Lift Truss Durable Outdoor Event Stage Truss Concert Lighting Speaker Suspension Audio Hanging Lifting System and so on.