Horizontal Wind Turbine Nylon Blades 530mm 550mm 580mm 630mm For Wind Turbine
(2) Designed for 3/5/6 wind Vanes blades (optional )wheel hub;. 6) Suitable for wind blades: within 700mm length. 3) This hub is thick and optional for 3/5/6 blades combination. Nut and screw. 4) Round shape allows single hubs to be practically durable.