Home / Standards / GB/T 4728.3-1998 GB/T 4728.3-1998 Abolished Graphical symbols for diagrams Part 3 Conductors and connecting devices 电气简图用图形符号 第3部分 导体和连接件 Standard Type GBT ICS 29.020 CCS K04 Status 废止 Issue Date 1984-10-22 Implementation 1998-12-01 Responsible Dept N/A Drafting Unit N/A