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    CNS 493 Standard english version introduction

    CNS General No. CNS 493
    Classified No. B2069
    Fine Whitworth Thread (Diameter Ranging From 20 to 189 mm, with Tip Clearance)
    韋氏細螺紋(尖端有空隙,直徑自20至189公釐)
    Date of Approval
    Bureau of Standards, Metrology and Inspection Date of Revision
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    CNS Standard Code CNS 493:2020
    CNS Standard Classified No. B2069
    CNS Standard English Title Fine Whitworth Thread (Diameter Ranging From 20 to 189 mm, with Tip Clearance)
    CNS Standard Chinese Title 韋氏細螺紋(尖端有空隙,直徑自20至189公釐)
    CNS Standard Edition Status:Current; Latest date:09/24/1955 Confirmed date:11/12/2020
    CNS Standard Pages 3
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    English Translation Price $*** USD
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