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HLBK series vertical mixed flow pumps are energy-saving product with high efficiency, developed and designed by our company according to national principles of energy saving and emission reduction to meet market demands. The series of products adopt advantages of both domestic and overseas similar products, and combine our many years manufacturing experience, which keep products improving. Hydraulic design, construction design and manufacturing process of the series of product were prized with more than 20 national patents, which have advantages of high efficiency, good cavitation performance, advanced construction, long operation life and installation and maintenance convenience.