The double wall section CAD drawing which includes reinforced concrete support, connecting sheets, sheet fixing, and heat insulating plate, sand cement mortar proportion, Detail of the Padded Joint, 1 cm mortar joint with sand cement proportion 1: 3, Interior detail of the double wall with niche, and light block of 15x20x40 size detail. Thank you for downloading the AutoCAD file and other CAD program from our website.