... of natural vermiculite,it's environmental friendly:no asbestos,no toxic,smoke free and non of any other harmful substances even ... are supplied8.We can add many craft to the board,such as:veneering,flame plating,carve,etc.The technical ... brick/panel used in fireplace,ovens,stoves,furnace,electric heater, storage heater3.Sound absorption wall partition or ceilings Vermiculite heat insulation board