... ) Material: zhongxing paper-faced gypsum board2) Thickness:7mm,7.5mm,8.0mm,8.5mm, 9mm,9.5mm,12mm,12.5mm3) Sizes: 595 x ... ) Weight: .5kg/sqm,7.5mm=5.7kg/sqm,8.0mm=5.9kg/sqm,8.5mm=6.2kg/sqm,9mm=6.8kg/sqm,9 ... (+/-5%)Kg/M27.0mm 4,000M2/20GP5.7kg 7.5mm 3,900M2/20GP5.9kg 8.0mm 3,800M2/20GP6.2kg 8.5mm 3,700M2 ... /20GP6.5kg 9.0mm 3,600M2/20GP6.8kg 9 ...