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International Standard Category: Bolts, screws, studs

QJ 2381-1992    Knurled Thumb Screws with Waisted Shank
滚花头不脱出螺钉 ;
Category No.:21.060.10 Valid Status:valid
Issued Organization: Issued Date:1992-03-24
Implemented Date:1992-11-1 Abolished Date:
Superseded Standard.: Superseded Date:
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