色婷高清无码在线,黑料不打烊tttzzz入口2022,国产三级久久,色婷婷免费丁香伊人,色婷婷狠狠18禁久久YYY高清,中文字幕日韩高清,国产精品久久久久久不卡

On the 8th day of the first lunar month of 2019, Tianjin Water Group launched an open bidding for the project of replacing residents' tap water meters with NB-IOT IoT water meters. Dozens of companies from the smart water meter industry participated in the bidding. After strict selection by the expert group, Jingda Company finally won the bid for "Binhai Water Company's overdue residents' tap water meter replacement project NB-IOT IoT water meter procurement (Section 1)".

This Tianjin Water Group public bidding project is the largest NB-IOT water meter bidding so far, with a total of 3 million units. Jingda will complete the first phase of the "Binhai Water Company's Overdue Residential Tap Water Meter Replacement Project NB-IOT Internet of Things Water Meter Procurement (Section 1)" project with quality and quantity, achieving a win-win situation for the water company, water meter users, and Jingda, and setting an example for the large-scale successful commercial use of NB-IOT water meters!