... aluminum alloy,16Degree hardness 3.stage truss factory stage truss system for sale Stage truss specifications: Truss MaterialAluminum ... craftsmanship,owns technicians design for your special request.5. Favorable price-with competitive price under the ... truss, layer truss, exhibition truss, movable stage, plexiglass stage, assembled stage, foldable stage, flight case, instrument case, standard case, ...