NS EN ISO 6411 Ed. 1 (1998)現行
Technical Drawings - Simplified Representation Of Centre Holes
出版：Norwegian Standards (Norges Standardiseringsforbund)
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)
BS EN ISO 6411:1997 - Identical
SN EN ISO 6411:1998 - Identical
ONORM EN ISO 6411:1997 - Identical
NBN EN ISO 6411:1998 - Identical
NF EN ISO 6411:1998 - Identical
I.S. EN ISO 6411:1998 - Identical
ISO 6411:1982 - Identical
SS EN ISO 6411 Ed. 1 (1997) - Identical
UNI EN ISO 6411:1999 - Identical
UNE EN ISO 6411:1998 - Identical
