... Material: Aluminum-alloy Features: High strength, distortion-free. Article: T-shaped keelMaterial: Aluminum-alloyFeatures: High strength, distortion-freeSize:Main beam 12 ... *30mmT profile 12*20mmWall angle 12*18mmDescription:Traditional T-shaped keel, complying with national manufacturing standard, high quality guarantee ... effect of the product is elegant and simple. T-Shaped Keel&bar&T-bar