... 3.CE,ISO,CSA,AS certified 4.flat pack house Flat pack house(certified by CE,B.V., ... sandwich panel 4.Detailed construction materials of our flat pack house:ItemSpecificationFrameCold formed 3-4mm Steel ... ProfileFloor·0.5 mm flat galvanized steel sheet·100mm non combustible mineral wool ... lock with 3 keys.· Net opening dimensions: 754 x 1985 mm.Wall panel·0.5mm galvanized &painted ...