... brake protection function CAT 300W Wind Generator CE Certification1.Low start up wind speed2.Beutiful,high efficiency,durableCAT-300W ... Pickling ,Phosphate,Electrostatic spraying. Automotive paint surface,Ensure that 10 years without rust.C.The blades material adopts strengthened fiberglass ... blades model made in German , Advantage is low start up wind speed,steady rotor speed,improve the ...