... QB300W-600W400-600mm13mm Physical Properties of electrical milk heater OpalescenceSiO2Heat ResistanceThe opaque quartz tube transmitting rate ... 1200°c7. 6000h service life, with SGS, RoHs approved8. Widely used in infrared heater, cooking, oven, stove, baker ... milk heater :package of electrical milk heater our factoryproduction lineother infrared heating element FYI electrical milk heater with CE