... ): 1, 220 x 2, 440mm. Custom Size Available. Aluminum Interior Curtain Wall Specification: 1, Standard size(widthxLength): 1, 220 x 2 ... , 440mm. Custom Size Available. 2, Thickness: 3, 4, 5, 6mm. 3, Aluminum ... customer's requirements. Material: 1, The front side: Aluminum alloy sheet coated with fluor-carbon resin (PVDF) or ...