Ningbo Yinzhou Guanyuan Electronic Co.,LtdAbout UsChaoyang Road, Dongya Village, Qiuai Road, Yinzhou District, Ningbo City, China, 315000Our Company specializes in the development and production of 25-100 core diaphragms for stage tweeters, acoustic vibration plates, PA drive heads.Ningbo Yinzhou Guanyuan Electronic Co.,LtdAbout UsChaoyang Road, Dongya Village, Qiuai Road, Yinzhou District, Ningbo City, China, 315000Our Company specializes in the development and production of 25-100 core diaphragms for stage tweeters, acoustic vibration plates, PA drive heads.Ningbo Yinzhou Guanyuan Electronic Co.,LtdNingbo Yinzhou Guanyuan Electronic Co.,LtdNingbo Yinzhou Guanyuan Electronic Co.,LtdNingbo Yinzhou Guanyuan Electronic Co.,LtdNingbo Yinzhou Guanyuan Electronic Co.,LtdNingbo Yinzhou Guanyuan Electronic Co.,LtdNingbo Yinzhou Guanyuan Electronic Co.,LtdNingbo Yinzhou Guanyuan Electronic Co.,LtdNingbo Yinzhou Guanyuan Electronic Co.,LtdNingbo Yinzhou Guanyuan Electronic Co.,LtdNingbo Yinzhou Guanyuan Electronic Co.,LtdNingb