... ,SGS,ASZN 3.Non-combustibility A1 GB Test rock wool strip/boardProducts specification ProductsDensity (kg/m3)Thickness (mm)Length (mm)Width ... (mm)RemarksRock Wool Board (Sheet,Slab,Strip)6050~100900—4000600—1300process glass cloth, aluminum foil, or glass ... .0≤0.044≥1.5≥98≤5Grade A rock wool strip/board