Home / Standards / SY 5438.1-1992 SY 5438.1-1992 Abolished 抽油杆及接箍打捞器 三球式捞筒 Standard Type SY54 ICS N/A CCS N/A Status Abolished Issue Date 1992-04-27 Implementation 1992-10-01 Centralized Committee 能源部 Issuing Authority 能源部