GB/Z 39121-2020
Specification for operation management of biochar production from crop staw on soil quality improvement project
- Standard No.
- GB/Z 39121-2020
- Language
- Chinese
- Release Date
- 2020
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Lastest
- GB/Z 39121-2020
GB/Z 39121-2020 history
- 2020 GB/Z 39121-2020 Specification for operation management of biochar production from crop staw on soil quality improvement project