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    CNS 12904 Standard english version introduction

    CNS General No. CNS 12904
    Classified No. H2093
    Methods of Test for Silicon in Nickel Materials for Electron Tubes
    電子管用鎳材料中矽檢驗法
    Date of Approval
    Bureau of Standards, Metrology and Inspection Date of Revision
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    CNS Standard Code CNS 12904:2019
    CNS Standard Classified No. H2093
    CNS Standard English Title Methods of Test for Silicon in Nickel Materials for Electron Tubes
    CNS Standard Chinese Title 電子管用鎳材料中矽檢驗法
    CNS Standard Edition Status:Current; Latest date:09/25/1991 Confirmed date:09/09/2019
    CNS Standard Pages 5
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