High-pressure centrifugal fans include: 9-12 series high-pressure centrifugal fans, 9-16 series high-pressure centrifugal fans, 9-19 series high-pressure centrifugal fans, 9-22 series high-pressure centrifugal fans, 9-26 series high-pressure centrifugal fans9-28 series high-pressure centrifugal fans, 9-38 series high-pressure centrifugal fans, 8-39 series high-pressure centrifugal fans.