herringhsu 发表于 2009-2-1 17:51:13

BS 919-4:2007 Screw gauge limits and tolerances –Part 4

Screw gauge limits and tolerances –
Part 4: Limits of size for gauges for screw threads of unified form diameters in and larger

[ 本帖最后由 herringhsu 于 2009-2-1 18:30 编辑 ]
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