LingTong - China Famous Brand. 1. Curved square aluminum profile, 120mm, 100mm, 80mm, 60mm, 40mm. 2. Anodized finish. 1. Curved square aluminum profile, we can bend 120mm, 100mm, 80mm, 60mm, 40mm square profiles.2. Anodized finish.3. The minima diameter is 2000mm.4. It is for customized system booth.5. The system groove is 4.3mm, it match with Germany system. Curved Aluminum Design , Square ...