Items - 97.6% Metallized alumina gun HV Ceramic ring (Dwng no: WEIK-EG-CH-03),97.6% Metallized alumina gun LV Ceramic (Dwng no: WEIK-EG-CH-05),97.6% Metallized alumina gun heater isolation ceramic (Dwng no: WEIK-EG-CH-07),97.6% Metallized alumina gun HV Ceramic-1 (Dwng no: WEIK-EG-CH-01)