... time spark plug,flame lighter,ceramics igniter Material For Choice : 1) Ceramic Insulator Body: 95% Alumina, Steatite with glazed or no ... glazed layer . 2) Electrode Pin/Rod: OCR25, OCR27, SUS304, Ni80Cr20, Kanthal D, etc ... (used for the ignition system of BBQ,oven, boiler and gas stove)