Piezoelectric guide

and Sensors & Measurement.

Onda Corporation(formerly SEA & Intec Research)
 
EDO Corp. Electro
Ceramic Products Div.
 
Fuji Ceramics Corporation
 
Daiwa / KDS America
 
Kyungwon Ferrite Ind. Co., Ltd.
 
Morgan Electro Ceramics
 
Piezo Systems, Inc.
 
Nb = 7