The built-in copper sleeve insert of the blade does not damage the nylon fiber when the bolt is tightened, making it difficult to deform or break.
The hub groove and the blade are tightly designed to make the matching between the blade and the hub more precise.
The double groove ball bearing used is thicker and is not easy to shake when the machine is running.
Human-friendly design,easy to install and maintain.
High wind power utilization, high conversion rate, low vibration.