1> type and size: : standard board Regular size (mm):1200x24001200x25001200*27001220x18301220x2440( Thick (mm):6.5mm7899.51212.51515.9 ect. : fire-resistant board Regular size (mm):1200x24001220x2440 Thickness: 12mm15mm : water resistant board Regular size (mm): 1200x24001220x2440 Thickness: 9mm12mm : moisture-resistant board Regular size (mm): 1200x24001220x2440 Thickness: 9mm12mm : any other size as your request. 2>gypsum board edge: A: tapered edge (recessed edge) B: square edge (straight edge) 3>color of the surface protective paper: A: white --for standard board B: red for fire-resistant board C: green--for moisture-resistant board D: green --for water-resistant board 4>usage: A: ceiling system B: partition system C: dry lining system 5> function: The property of our products is: fire resistantmoisture resistantsound insulationheat preservationenvironm We try our best to meet your infinite demand