ICNEA 4821—Engineering construction of water sources and water supply facilities

Where 4821 sits

1. E Construction industry
2. 48 Civil engineering construction industry
3. 482 Water conservancy and water transportation engineering construction
4. 4821 Engineering construction of water sources and water supply facilities

What 4821 includes

• Including construction activities for the following water sources and water supply facilities projects：
• Hydraulic tunnel engineering services, well engineering services
• Water conservancy facilities (part): water conservancy hub facilities, reservoir facilities, diversion canal facilities, water extraction facilities, irrigation and drainage facilities, and village (rural) water supply facilities

4821 in other systems