Home / Standards / GB/T 22513-2023 GB/T 22513-2023 Active Petroleum and natural gas drilling and production equipment—Wellhead and tree equipment 石油天然气钻采设备 井口装置和采油树 Standard Type GBT ICS 75.180.10 CCS E92 Status 现行 Issue Date 2023-05-23 Implementation 2023-12-01 Responsible Dept 国家标准委 Drafting Unit N/A