У вашего броузера проблема в совместимости с HTML5
My axial industrial fans. the one with red plastic (glass filled polypropylene) blades is a 12 blade Flakt Woods BX 230 drive plate assembly with right hand blades that I assembled at my old work (freebie) and the high speed one with steel blades is from a new industrial gas heater that was scrapped for unknown reasons.
I have a number of other Flakt Woods axial impellers but no motors for them.