ISO 3293:1975被替代
Morse taper shank countersinks for angles 60 degrees, 90 degrees and 120 degrees inclusive
出版：International Organization for Standardization
专家解读视频
KS B ISO 3293:2003 - Identical
KS B ISO 3293:2013 - Identical
JIS B 4231-2:1999 - Identical
NF ISO 3293:2004 - Identical
GB/T 1143-2004 - Identical
DIN 335 (2007-12) - Identical
DIN 334 (2007-12) - Identical
NS 5340 Ed. 1 (1977) - Identical
BS 328-5:1983 - Identical
