Our company has over 30 years of experience in the design, development, test, and production, of piezoelectric element and ultra Product DescriptionOur ... company has over 30 years of experience in the design, development, test, and production, of piezoelectric element and ultrasonic transducer in ... .0%46± 5%≤ 10681≥ 50≥ 800 Ring Piezoelectric Transduce,all kinds of piezoelectric ceramic