Top Panel-clamping Extrusion is the extrusion which is used at the top of panels to clamp panels. Its max length is 6m. If you have any other requirements, LingTong will meet your needs. It weighs 0.350kg for per meter. It is made of aluminium. ML1564 is for the wall system of 40mm square extrusion. Its size is 42.3*8.5mm. The one side of the extrusion is inserted to one of the grooves of 40mm square extrusion and the other side is inserted into the panel’s groove and use screws to connect them. If there are some relative needs, LingTong will provide the best service for you in exhibition construction.