
Vacuum technology; Graphical symbols
出版:International Organization for Standardization

专家解读视频
1ED 1977
UNE 1097:1983 - Identical
BS 5543:1978 - Equivalent
NFE 04 201:1994 - Similar
NFE 04 202-1:1996 - Similar
UNI ISO 3753:1986 - Identical
JIS Z 8207:1999 - Equivalent
KS B ISO 3753:2004 - Identical