Home / Standards / GB/T 27699-2023 GB/T 27699-2023 Active Technical specification for in-line inspection of steel pipeline 钢质管道内检测技术规范 Standard Type GBT ICS 75.200 CCS E98 Status 现行 Issue Date 2023-05-23 Implementation 2023-05-23 Responsible Dept 国家标准委 Drafting Unit N/A