... Max Airflow:30CFMWe are major in producing DC, AC, and AC to DC axial fans, blower, centrifugal fan, cross- ... low power, energy-saving fan that AC TO DC (EC).We through the managerment system ISO9001:2008 ... future! We are major in producing DC, AC, and AC to DC axial fans, blower, centrifugal fan, cross-flow ... low power, energy-saving fan that AC TO DC (EC).We through the managerment system ISO9001:2008 ...