Home / Standards / GB/T 4728.2-2005 GB/T 4728.2-2005 Abolished Graphical symbols for diagrams Part 2 Symbol elements,qualifying symbols and other symbols having general application 电气简图用图形符号 第2部分:符号要素、限定符号和其他常用符号 Standard Type GBT ICS 29.020 CCS K04 Status 废止 Issue Date 2005-03-03 Implementation 2005-08-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委