全黄性_天堂官方_亚洲无吗精品AV九九久久_欧美三级裸露720P_99热这里只有精品9_日本不卡一区二区三区_色婷婷AV一区二区三区之红樱桃_法网伊人_国产精品自在拍在线拍_2019年最新夜间福利视频_香蕉国产_青青草a国产免费观看_2021自拍偷在线精品自拍偷_亚洲中文字幕在线第六区_金8天国欧美高清无码_秋霞网在线观看1_极品av_秦岭神树在线观看_欧美性爽交A片大全_花蝴蝶HD免费高清

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!