High-pressure fans as the name implies require higher pressure, but there is no clear classification of what kind of boundary belongs to high pressure, generalized that fan manuals such as 8-09, 9-12, 9-19, 9-26, 10-08 and most models belong to the high-pressure series, as most industrial enterprises work in a variety of corrosive media, so the FRP material to be widely used in the field of corrosion, while the characteristics of the FRP itself, it is impossible to withstand particularly high pressure, which in turn limits the dual demand for FRP material in the anti-corrosion and high-pressure resistance.