Today, our company had online communication with the customers of the Vietnamese construction contracting company. At the same time, we showed our multi-stage centrifugal blower to the customer through live video. The customer purchased our multi-stage centrifugal blower for the mineral floating in the 800 million projects. select. Visited the production line of the multi-stage centrifugal fan workshop equipment, introduced our production process in detail, as well as the air volume, air pressure, vibration, dynamic balance, and other testing equipment and experimental platforms, the casing impeller casting process, the rotor is manufactured with advanced technology, and the impeller is used. Finite element theory, using quasi-three-dimensional (ternary flow) design. The impeller adopts High-quality aluminum alloy centrifugal casting; stable and reliable performance to ensure high-speed operation Lower impeller strength, thus ensuring the longest service life of the impeller. Due to the impeller line Reasonable and well-made, the blower's efficiency can reach 78%, which not only saves a lot of money energy and but reduce operating costs.