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Our History Granvoz focuses on manufacturing, developing, and exporting speakers. In 20 years, we have been aiming at making the best speaker units. Our Factory On manufacturing, Granvoz owns a 3.5-acre factory locates in Anhui, China. Thus, we are confident taking care of every valuable client and order. Our Product We offer some of the most cost-effective speaker products such as the midranges, subwoofers, bullet tweeters, and coaxial speakers. Product Application Car audio, Live performance, Big events like expo, exhibition. Our Certificate Productio... [Details] |