Home / Standards / GB/T 6567.3-2008 GB/T 6567.3-2008 Active Technical drawings - Graphical symbols for piping systems - Piping accessories 技术制图 管路系统的图形符号 管件 Standard Type GBT ICS 01.100.01 CCS J04 Status 现行 Issue Date 2008-06-26 Implementation 2009-01-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委