国产精品三级在线观看无码,作爱小说,性瘾欲女系统hh,国产精品无码一区二区三级

Project Name: Ningyuan Sewage Treatment Plant Phase I Expansion and Quality Improvement Project.

Project Content: The sewage treatment scale of this project is 40,000 tons per day for the Phase I renovation and 20,000 tons per day for the newly built Phase II. Xinhuan Environmental Protection delivered a complete set of sewage plant process integration packages, including fine screens, secondary sedimentation tanks, high-efficiency sedimentation tanks, and filter cloth filters.

The project started at the end of 2021 and completed commissioning and acceptance in September 2022.