Home / Standards / SY 5492-1992 SY 5492-1992 Active 平原区船载人抬钻地震勘探劳动定额 Standard Type SY54 ICS N/A CCS N/A Status Active Issue Date 1992-09-17 Implementation 1993-02-01 Centralized Committee 能源部 Issuing Authority 能源部