spark electrodes,flame sensors,spark plug Application: 1, water heater 2, gas-oven 3 ,boiler 4, ... BBQ spark electrodes,flame sensors,spark plug Material For Choice: Ceramic Insulator Body: 95% Alumina, Steatite with ... glazed or no glazed layer Electrode Pin/Rod: OCR25, OCR27, SUS304, Ni80Cr20, Kanthal D, etc. Bracket: Steel ...