... alloy,16Degree hardness 3.stage truss factory used truss equipment for sale Stage truss specifications: Truss MaterialAluminum 6082/T6 16degrees hardnessTruss ... ,etcLength available for this aluminium truss: 1m,1.5m,2m,2.5m,3m,3.5m,4m(also design based on ... products are with 3 years guarantee4. Unique design-with perfect craftsmanship,owns technicians design for your special request.5. Favorable price- ...