1 1H. Schellens (piezo-expert and owner of Heinmade, supplier of piezo cerramics)Ken (Chinese component expert, employee of J&R electronics in China)J. Kunzmann (piezo-expert…
1 1H. Schellens (piezo-expert and owner of Heinmade, supplier of piezo cerramics)Ken (Chinese component expert, employee of J&R electronics in China)J. Kunzmann (piezo-expert…