... /2400/2700 2,good price,good quality 3,regular grade,water proof,fire proof Gypsum BoardThickness: 9, 9.5, 12, 12 ... ..Size:1200X2600,1200X2800,1200X3000mmStandard: KS F3504, JIS A 6901Technical Parameter Testing ItemRequired Data by StandardTypical Data9.5 mm12 mmRupture Load (N ... ≥ 180Unit weight (kg/m2)≤ 9.5mm7.910.2≤ 12 mm Water Proof Gypsum Board