ISO 6411 : 1982(R2014)现行
TECHNICAL DRAWINGS - SIMPLIFIED REPRESENTATION OF CENTRE HOLES
出版：International Organization for Standardization
专家解读视频
Defines the simplified representation of centre holes and their designation.
NS 1446 : 1985 - Identical
DIN ISO 6411 : 1997-11 - Identical
DIN ISO 6411 E : 1997 - Identical
UNE 1109 : 1983 - Identical
UNI 8189 : 1980 - Similar to
PN EN ISO 6411 : 2002 - Identical
BIS IS 11668 : 1985(R2000) - Identical
NEN ISO 6411 : 1992 C1 1998 - Identical
DS EN ISO 6411 : 1998 - Identical
DIN 332-10 : 1983 - Similar to
BS 308-1.23(1997) : 1997 - Identical
