ALKALINE EARTH AND LEAD TITANATE, ALKALINE EARTH AND LEAD ZIRCONATE, ALKALINE EARTH AND BISMUTH STANNATE; COMPOUNDS OF THE BARIUM TITANATE FAMILY, BARIUM FERRITE FAMILY, MANGANESE-ZINC FERRITE FAMILY AND NICKEL-ZINC FERRITE FAMILY; STEATITE, FORSTERITE, CORDIERITE, ZIRCON, AND ALUMINA; ALL FOR USE IN THE MANUFACTURE OF CERAMIC CAPACITORS, ELECTRICAL TRANSDUCERS, ELECTRONIC INSULATORS, AND LIKE ELECTRONIC ELEMENTS