Home / Standards / GB/T 21411.1-2014 GB/T 21411.1-2014 Active Petroleum and natural gas industries―Progressing cavity pump systems for artificial lift―Part 1: Pumps 石油天然气工业 人工举升用螺杆泵系统 第1部分：泵 Standard Type GBT ICS 75.180.10 CCS E92 Status 现行 Issue Date 2014-12-22 Implementation 2015-10-01 Responsible Dept 国家标准委 Drafting Unit N/A