gypsum board plaster board for ceiling office size in 600*600*15mm Good quality ,fast deliver time Email for catalogu GRG ceiling tiles Gypsum ceiling board ,gypsum panel ,plaster board , it is fire-proof, water-proof, antisepsis and heat insulation, widly uused for the office buidling .Gypsum Ceiling Board: Standard size: 595*595mm. Thickness: 10mm 15mm. Size tolerance: Length ± 2mm, width ± 2mm ...