The product model Al is seamless gusset plate design. The cover plate and main profile can be self-assembled by special design, avoiding the trouble of connecting the cover plate with the main profile by screws. The steel wire passes through the middle hole, with beautiful appearance, which can effectively prevent thieves from disassembling the cover plate. The product has obtained the appearance patent issued by the state! Suitable for the installation of users with high requirements for products, mostly used for the construction of straight lines and small radians! The products are available in black and white, available in 1.0 and 1.5mm thickness. Note: the Al thick cover plate can also be used in ag5 series products to form a square seamless cover product series