... insulation 3.General size: 1,220 x 2,440mm specificationStandard size: 1,220 x 2,440mm Aluminum thickness: 0.5mm, ... 30mm, 50mm featureMade of aluminum honeycomb core and face panel through panel pretreatment, primer application, color lacquer finishing and varnish ... other signage or facade materials resulting in an optically flat panel Structure and dimensions can be designed and manufactured according ...