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liuxilin1215 发表于 2018-2-7 15:58:38

ASME B1.1-2003(R2008) Unified Inch Screw Threads (UN and UNR Thread Form)

ASME B1.1-2003(R2008) Unified Inch Screw Threads (UN and UNR Thread Form)

admin 发表于 2018-2-8 20:42:57

谢谢您的分享，金币已奖励!

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