Meide Group's Self-Developed Large-Diameter Flexible Couplings. Meide Group has independently developed large-diameter flexible couplings, achieving flexible connections for large-diameter steel pipes in water conservancy projects. This innovation completely resolves the anti-corrosion challenges associated with welded steel pipes, extending their service life from 20-30 years to over 50 years. These joints ensure the safety of pipeline water quality, reduce pipeline leakage rates, and minimize the scope of operational safety incidents. Additionally, the large-diameter grooved connections enable quick and easy installation, reducing construction difficulty and improving installation efficiency. This advancement is conducive to promoting high-quality development in pipeline connections within the water conservancy industry.