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Best Ring Technology Co., Ltd
No.2467 Tingfeng Highway, Zhujing Industrial Park, Jinshan District, Shanghai, China.
Tel: 021-57510551    021-57510021
Fax: 021-68127395  
E-mail: lsb@lsb-china.com      lsb_china@163.com      lsb_009@lsb-china.com 
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