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    4 SQUARES TOOLS CO., LTD.
    No. 259, Sec. 1, Chang-Nan, Rd.

    Chang-Hua City, 50092, Taiwan.
    Tel: +886 4 737 4444
    Fax: +886 4 737 4477​

    4s@4stool.com

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    © 2019 - 4 Square Tools Co., LTD.

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    IEC60900:2004