fireproof board,magnesium oxide board,mgo board,glass mgo board,fireproof,water proof,asbestos free,light weight,high strength Fire proof board,magnesium oxide board,magnesium fireproof board,mgo board,magnesium board Features: 1) 100% asbestos ... : 1,220mm3) Max. length: 3,000mm4) Edges: square / bevelled / tappered mgo board