DB15/T 2859-2023 Technical regulations for construction and management of underground pipe drainage works in saline-alkali land in Hetao irrigation area (English Version)
Inner Mongolia Provincial Standard of the People's Republic of China
Latest
DB15/T 2859-2023
DB15/T 2859-2023 history
2023DB15/T 2859-2023 Technical regulations for construction and management of underground pipe drainage works in saline-alkali land in Hetao irrigation area