... , computers, calculators, telephones, electronic and toys . One.Piezo Ceramic Element Applications1. For sound making:Clocks,Calculators,Telephones,Washing machines ... or less .Six. SWT piezo diaphragm’s excellence1, All the piezo diaphragm have our own intellectual property, own ... of formula creation of the products to finished goods, all production procedure is proceeded and monitored in our factory. ...