Home / Standards / GB/T 30818-2014 GB/T 30818-2014 Active Fully welded body ball valves for pipeline transportation systems in petroleum and natural gas industries 石油和天然气工业管线输送系统用全焊接球阀 Standard Type GBT ICS 23.060.10 CCS J16 Status 现行 Issue Date 2014-05-06 Implementation 2014-12-31 Responsible Dept 中国机械工业联合会 Drafting Unit N/A