... plate Saving gas more than 22% Long working life Infrared ceramic plaque can be widely application to gas burner ... , grill, oven, BBQ, cooker cooktop, water heater, infrared heating and etc.Surface shape: smooth, rhombus,wave, quincunx. ... shapes according to client's requirements.Technical data of infrared ceramic plaque:HoleRound holeSquare holeMaterialcordieritecordieriteVolume density0.45-0.65g ...