http://www.chinaspeakerparts.comAgency Contactyu meiPhone: +86 - 575 - 83223380/+86 - 013605856660Fax: +86 -
Jiangdong village, Lushan Block, Shengzhou City, Zhejiang Province, China.shengzhou, zhejiangChina, 312000Web Page Link: http://www.toboc.com/shengzhoujinshenglongimportexportcoltd
the main material of steel frame is steel, the price is cheaper, and it is common used in small speaker.
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Shengzhou Jinshenglong Import & Export Co.,Ltd.