9mm Commercial Durable Wall Gypsum Plasterboard 1)15 year history. 2) ... : Gypsum powder2.Size: 1200x2400mm; 1220x2440mm3.Thickness: 6.4mm,7mm, 8mm, 9mm,9.5mm,12mm,12.5mm,13mm,15mm (depend on the ... actively seek co-operation arrangements with interested international ceiling manufacturers. 9mm Commercial Durable Wall Gypsum Plasterboard