Gypsum board, is often called drywall, wallboard, or plasterboard. It differs from
   other panel-type building products, such as plywood, hardboard,
   and fiberboard, because of its noncombustible core and paper
   facers. When joints and fastener heads are
   covered with a joint compound system, gypsum wall board creates a continuous
   surface suitable for most types of interior decoration.
 
  
   Main Characteristic
   1.Environmental friendly
   2.Non-combustible 
   3.Strong nail holding power
   4.Heat & sound insulation
   5.Smoothness ceiling board
   6.Light weight in unit acreage
   7.Square Edge or Tapered edge ceiling board