1vertical wind turbine 2..light and spray treament 3.SGS ... ,very low start up speed ,the high anti-wind capability,high stability ,good apreaence.no noise and long ... optimized air operated shape design,the uasge factor of wind power is much higher under the same totor ... the lable1.5rated rotate speed180r/minrate wind speed11m/sstart up wind speed1.7m/sworking wind speed3-25security wing speed40m/srated ...