- Standard No.
- QBJ 203-1987
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Light Industry
- Status
- 2023-04
- Latest
-
QBJ 203-1987
- Replace By
-
QB/T 203-2022
QBJ 203-1987 history
- 1970 QBJ 203-1987 Technical Specifications for Well Mine Salt Drilling
QBJ 203-1987 Technical Specifications for Well Mine Salt Drilling was changed to QB/T 203-2022 Technical Specifications for Well Mine Salt Drilling.