... 4. High efficiency Introduction of 10kw pitch controlled wind turbine10kw pitch controlled wind turbine, newly developed by Qingdao Anhua ... acting anticorrosive treats, no corrosion in 15years.Pitch controlled elementRotating speed change of wind rotor drives the ... acting anticorrosive treats, no corrosion in 15years. Pitch controlled elementRotating speed change of wind rotor drives the centrifugal ...