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

After two rounds of public bidding, on November 9, 2016, Jingda Company received the winning notice, confirming that our company was the winning bidder of the "Shanghai Chengtou Water (Group) Co., Ltd. Electronic Remote Transmission Water Meter (Wireless) Procurement Project". The contract will be signed and the supply will begin within 15 days after receiving the winning notice!

The wireless electronic remote transmission water meter that was bid for this time uses environmentally friendly engineering plastic materials, wireless remote transmission automatic meter reading, and patented anti-freezing technology within -8℃. The wireless remote transmission uses self-organizing network multi-level routing technology. Any water meter can act as a router to ensure stable and reliable wireless communication. The low-power design of the whole meter and the built-in imported battery can ensure normal operation for more than 6 years, and the battery voltage can be checked in real time through the remote meter reading software, which is convenient for replacement.

Last year, due to the extremely cold weather in Shanghai, a large number of water meters were frozen, causing great inconvenience to the lives of thousands of households. In this public bidding, the management department specially proposed anti-freezing requirements, and used technical means to ensure the water needs of thousands of households in cold weather. Jingda Company has patented technology for anti-freezing of water meters within -8 degrees Celsius, which has obvious advantages in the extremely cold weather in 2015!

At present, water meters have been shipped in batches and delivered to the local calibration station in Shanghai. After each water meter passes the calibration, it will be installed in batches in multiple communities. In 2017, more and more Shanghai citizens will use Jingda water meters. Compared with cast copper and cast iron water meters, copper and iron ions are precipitated in water during use, which is harmful to the human body for long-term use. This water meter uses environmentally friendly plastic shell material, which can better ensure water safety and human health!