TY - JOUR T1 - Evaluation of Tanzania local ceramic raw materials for high voltage porcelain insulators production JO - CerĂ¢mica A1 - Ngayakamo, B. A1 - Park, S. E. SN - 0366-6913 UL - 10.1590/0366-69132018643722427 VL - 64 Y1 - 2018 PB - Brasil ER -