10w 15w 20w to 50W Magnet Speaker Long-Life Dual Suspension

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R&D: 7F GangShen International center, Minzhi St., Longhua New District, Shenzhen, Guangdong, China.
ShenZhen : 2 / F, L Building, Shifeng Technology Park, No. 6 Zhongtai Road, Guangming New District, Shenzhen, Guangdong, China
General Factory: No 211 WeitangRoad ChangFeng Industrial ,Ganyao Village, Jiashan city, zhejiang Prov

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