
Specification for screw threads for spectacle frames
出版:British Standards Institution

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基本信息
標準編號: BS 3172:1987
發布時間:1987/11/30 0:00:00
標準類別:Standard
出版單位:British Standards Institution
標準頁數:4
標準簡介
Requirements for ISO metric screw threads, related taps and gauges, and the tolerance on the length of screw. Includes recommendations for gauging practice.
標準備注
? British Standards Institution 2013
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