USB Camera Module Cable Video Converter Cable Barium Titanate Ceramic (Lead-Free) (BaTiO3) PZT Ceramic  General Infomration  Disk Type  Plate Type  Cylinders / Rod Type  Tube Type  Ring Type  Ball / Hemisphere / Focal Bowl Type Products > PZT Ceramic > Ball / Hemisphere / Focal Bowl Type Piezo Ball / Hemisphere / Focal Bowl Type 6 Piezo Ball / Hemisphere / Focal Bowl Type 5 Pizeo Ball / Hemisphere / Focal Bowl Type 1 Piezo Ball / Hemisphere / Focal Bowl Type 2 Piezo Ball / Hemisphere / Focal Bowl Type 3 Piezo Ball / Hemisphere / Focal Bowl Type 4