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    CNS 4221 Standard english version introduction

    CNS General No. CNS 4221
    Classified No. B2157
    Metric Trapezoidal Screw Thread (Limits for Internal Screw Threads From 8mm to 100mm)
    梯形螺紋(標稱直徑8mm至100mm的內螺紋限界尺寸)
    Date of Approval
    Bureau of Standards, Metrology and Inspection Date of Revision
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    CNS Standard Code CNS 4221:2017
    CNS Standard Classified No. B2157
    CNS Standard English Title Metric Trapezoidal Screw Thread (Limits for Internal Screw Threads From 8mm to 100mm)
    CNS Standard Chinese Title 梯形螺紋(標稱直徑8mm至100mm的內螺紋限界尺寸)
    CNS Standard Edition Status:Current; Latest date:03/02/1978 Confirmed date:07/27/2017
    CNS Standard Pages 7
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    English Translation Price $*** USD
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