SL 310-2019 Technical specifications for village and town water supply projects has been changed from SL 687-2014 Design code for rural water supply engineering.
SL 310-2019 Technical specifications for village and town water supply projects has been changed from SL 688-2013 Acceptance code for construction quality of rural water supply engineering.
SL 310-2019 Technical specifications for village and town water supply projects has been changed from SL 689-2013 Code of practice for operation and maintenance of rural water supply.
Copyright ©2023 All Rights Reserved