TRANSFORMER FOR ELECTRONIC MATERIAL FRITTING FURNACE SINTERING PRESSURE ADJUSTMENT RECTIFORMER TRIPHASE SILICON MOLYBDENUM BAR TRANSFORMER SINGLE-PHASE SILICON MOLYBDENUM BAR TRANSFORMER TRIPHASE INSULATING TRANSFORMER ELECTROSLAG FURNACE TRANSFORMER TRIPHASE OIL IMMERSION TYPE MAGNETIC VOLTAGE REGULATOR TRIPHASE DRY TYPE MAGNETIC VOLTAGE REGULATOR DRY TYPE RECTIFIER TRANSFORMER OIL IMMERSED TYPE RECTIFICATION TRANSFORMER