DIN ISO 6411 (1997-11)现行
Technical drawings - Simplified representation of centre holes (ISO 6411:1982)
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
This standard is included in DIN Handbook 2-2 and 14. The simplified representation of centre holes and their designation is specified in this standard. The simplified representation of centre holes may be used where the designation of standardized centre holes is sufficient for information and particularly when it is not necessary to show the exact form and size.
ISO 6411:1982 - Identical
SN EN ISO 6411:1998 - Identical
ISO 6411 : 1982(R2014) - Identical
SN EN ISO 6411 : 1998 - Identical
