国产久草AV,日本黄色免费人成视频,av毛片在线看,2021av无码无在线观看

This project is a water meter renovation project for the entire county. At present, 20,000 households have implemented the renovation of old meters, which has completely changed the original bottlenecks of difficult meter reading, difficult billing, difficult water use, and difficult management, and has brought the local water affairs intelligent construction to a new level! The implementation of the project has great social and economic benefits, and the local media has conducted in-depth interviews and live broadcasts.