upriw 发表于 2021-8-17 15:05:22

谁有 ASME B1.1 - 2019

谁有 ASME B1.1 - 2019Unified Inch Screw Threads (UN, UNR, and UNJ Thread Forms)
标准英制螺纹(UN和UNR螺纹牙型)
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suixinyu 发表于 2021-8-17 15:05:23

ASME B1.1-2019 Unified Inch Screw Threads (UN, UNR, and UNJ Thread Forms) - ASME 美国机械标准 - 世界资料网论坛 (infoeach.com)
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