Home / Standards / GB/T 38650-2020 GB/T 38650-2020 Active Safety information markings of piping systems—Design principles and requirements 管道系统安全信息标记 设计原则与要求 Standard Type GBT ICS 01.080.01 CCS A22 Status 现行 Issue Date 2020-03-31 Implementation 2020-10-01 Responsible Dept 国家标准委 Drafting Unit N/A