Mgo Board 1.1220*2440*(3-20)mm 2.partition wall,ceiling,fence 3. ... oxide, magnesium chloride,glass fiber, wood flour,perlite; 2.specification:1220×2440,1220×3000,900×2700,other sizes are viable,the length ... ≤3000 and the width≤ 1300; 3.thickness:3-20mm 4.color: ...