Tangential keys and keyways
出版:International Organization for Standardization
专家解读视频
KS B ISO 3117:2003 - Identical
NBN E 27 712:1977 - Identical
NFE 22 182:1991 - Equivalent
UNI 7515:1976 - Equivalent
NFE 27 659:1978 - Similar
PN 90/M-85007:1990 - Identical
BIS IS 2291:1990 (R2001) - Identical


