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  • Yiosi R&D Center

    8th Floor, Huajian Building, Linqu, Weifang, Shandong Province, China
    T: 0536-3393666
    F: eossjs@163.com

  • Yiosi System Doors and Windows (Shandong) Co., Ltd

    No. 107, Zone C, Zhongou Doors and Windows Industrial Park, Linqu, Weifang, Shandong, China
    T：400-007-6680
    F：eoss_xt@163.com

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