DB42/T 2031-2023 Technical regulations for control and utilization of nitrogen and phosphorus loss in manure from distributed livestock and poultry (English Version)
Hubei Provincial Standard of the People's Republic of China
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DB42/T 2031-2023
DB42/T 2031-2023 history
2023DB42/T 2031-2023 Technical regulations for control and utilization of nitrogen and phosphorus loss in manure from distributed livestock and poultry