DZ 0021-1991
General technical requirements for very low frequency electromagnetic instruments (English Version)
- Standard No.
- DZ 0021-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- Professional Standard - Geology
- Latest
- DZ 0021-1991
DZ 0021-1991 history
- 1991 DZ 0021-1991 General technical requirements for very low frequency electromagnetic instruments
