Ventilation and air movement equipment, namely, apparatus for ventilating and air-conditioning; electric motor-driven fans, ventilating fans for commercial and industrial use, and hot air blowers; parts for the aforesaid goods, in particular, ventilating fan wheels, ventilating fan blades, fan wheels, fan blades, blowing machine wheels, blowing machine housings, inflow nozzles, outflow nozzles, diffuser housings; fittings for electric motor-driven fans, ventilating fans for commercial and ind...