... gas burner, grill, oven, BBQ, cooker cooktop, water heater, infrared heating and etc.Surface shape: smooth, rhombus,wave, quincunx.We ... and shapes according to client's requirements.Technical data of infrared ceramic plaque:HoleRound holeSquare holeMaterialcordieritecordieriteVolume density0.45-0.65g/ ... 0MpaNote: we can be customized as per client's requirements. Infrared ceramic plaque for gas burner