Home / Standards / GB/T 16900-2008 GB/T 16900-2008 Active Rules for the presentation of graphical symbols - General principles 图形符号表示规则 总则 Standard Type GBT ICS 01.080.01 CCS A22 Status 现行 Issue Date 2008-07-16 Implementation 2009-01-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委