http://www.mywindpowersystem.com/2009/03/how-to-make-pvc-wind-turbine-blades/
the first pvc blades. its for a model to test the efficiency of the best blade designs.
http://www.mywindpowersystem.com/2009/03/how-to-make-pvc-wind-turbine-blades/
the first pvc blades. its for a model to test the efficiency of the best blade designs.
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