BS EN ISO 6411:1997現行
Technical drawings. Simplified representation of centre holes
出版：British Standards Institution
專家解讀視頻
Defines the simplified representation of centre holes together with their designation. It is possible to use simplified representation of centre holes especially when it is unnecessary to show the exact form and size and where the designation of standardized centre holes is enough for information. ALSO NUMBERED AS BS 308-1.23(1997)
? British Standards Institution 2013
Document identifier notes:
Also numbered BS 308-1.23:1997.
NF EN ISO 6411:1998 - Identical
UNI EN ISO 6411:1999 - Identical
I.S. EN ISO 6411:1998 - Identical
SN EN ISO 6411:1998 - Identical
BS 308-1.23:1997 - Equivalent
ONORM EN ISO 6411:1997 - Identical
NBN EN ISO 6411:1998 - Identical
NS EN ISO 6411 Ed. 1 (1998) - Identical
ISO 6411:1982 - Identical
SS EN ISO 6411 Ed. 1 (1997) - Identical
UNE EN ISO 6411:1998 - Identical
