acrylic sign card for fire alarm 2.pannel:180*80mm 3.thickness:5mm 3.processing:silk-screen and polishing acrylic sign card 1.pannel:180*80mm2.thickness:5mm3.processing: silkscreem.4.cusomized size, shape, style, design, color and logo.5. material: High quality acrylic , aluminium, wooden and so on.