70mm beam extrusion with 1 system grooves,  aluminum alloy material 6063, classic exhibition construction, components for standard booth\ shell scheme\display booth \exhibition booth\pavilion group booth\trade show\back to back booth\fascia board\expo and liner booth, used in exhibition industry. Strong compressive ability, strong enough thickness and hardness, and is not easy to deform. Good surface treatment effect, such as anodize\power coated\silver and so on, corrosion resistance and wear resistance, not easy to scratch, and the material can be recycled. Only a wrench can be used to complete the construction of a booth, 8.5mm groove is compatible with tension lock Z959F and other display accessories.