... wave soldering.The main Attribute characters for Magnetic buzzer/ magnetic transducer, as followsMaterial: Magnetic; ABS;PPOConnection terminal: Pin, Wire, or ... research , produce and sell various piezoelectric ceramic elements , piezoelectric buzzers , piezoelectric ultrasonic transducers/Sensors and piezoelectric horns , electro-magnetic buzzers, piezoelectric buzzers, and speakers. The monthly ...