Home / Standards / GBT 24742-2009 GBT 24742-2009 Technical product documentation — Representation of graphical symbols for process flow charts 技术产品文件 工艺流程图表用图形符号的表示法 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A