Lingtong Double connecting extrusion W2639 is used for the connection between two double side fabric extrusion W2638. The Double side fabric frame can be used for multiple applications: used double-side fabric light box as suspended poster; as a poster in the display window of the store; as guidance in entrance. The installation method of picture is sewing the fabric with silicon strip and insert into the frame. The main material is aluminium. The weight is 0.890kg/m.