Durable: FRP corrosion fan with acid Viny1Ester acid resin and plastic shell to protect against UV damage caused FRP loss and prolong life. Safety: acid corrosion fan whole unit strain analysis by computer capacity, improve the structural strength and impeller balancing comply with JB / T 9101-1999 specification of 2.5mm / s grade, after fan assembly, also in line with the value of the unit vibration JB / T 8689-1998 specification of 4.5mm / s above grade level requirements, significantly reducing the risk of bursting due to vibration, to bring you a safer working environment. Good maintenance: corrosion acid fan with an oil bath Bearing Units, heat resistance, high-speed, anti-corrosion, dust, water and other features that make it easier for you in the operation maintenance, cheaper labor costs, and functioning life of 50,000 hours, greatly increasing the service life. Quick service: has its own R & D capabilities, enhance your knowledge on the field of wind turbine technology, effective troubleshooting, allowing you to enjoy the highest quality standards of the fan, to help you make the rib faster, more accurate purchasing decisions.