Ignition electrodes are made of high alumina porcelain body with significant properties including high density 2 / 6-2 / 8 gr / cm ³ , flexural strength 700 kg / cm ² , Have the transparency of body color and glaze as well as zero porosity. These parts are used in industrial and domestic burners, control valves for gas stoves, water heaters and gas heaters and are a kind of electrical insulation against high voltages up to 20 KV.