JD-22GC-2003 JD-series piezoelectric buzzers which are characterized by high and low temperature resistant, wet resistant and stable etc. They are widely used in warning and language circuit of washing machine, water heater, air-conditioner , mico?ave oven ,refrigerator etc. Address: JIANHU development zones Key Contact: XU ZHONG FEI Tel: 0515-6086077 6253335 JIANHU County JIADA Electronics CO.,LTD.