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[高分] 专利、报告等 Screw Thread Gaging Systems for Acceptability: Inch and Metric Screw Threads (UN, UNR, UNJ, M, and MJ) (B1.3 - 2007)
螺纹可接受性测量系统:英制和公制螺纹(UN、UNR、UNJ、M和MJ)(B1.3-2007)
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