
ISO general-purpose screw threads - Basic profile Part 2: Inch screw threads
出版:International Organization for Standardization

专家解读视频
PN ISO 68-2:2000 - Identical
SS ISO 68-2 Ed. 1 (2003) - Identical
NF ISO 68-2:2004 - Identical
BS ISO 68-2:1998 - Identical
GB/T 20669-2006 - Modified