... 4,MOQ;1000pieces High quality Piezoelectric Ceramic For Ultrasonic Equipments Main feature of Piezo Ceramic Element:-Extremely thin and light ... consumption;-No EMI\RFI. Piezo Ceramic Element: Applications (Piezoceramics element; Piezo diaphragm, piezo plate)1, For sound making: ... Smallest diameter is 8mm, Biggest is 65mm;4, Metal plate types: Brass, Nickel, Stainless steel;5, Connection terminal: ...