Jiangsu Rongfa specializes in manufacturing wind turbine main shafts, widely used in onshore and offshore wind turbines. As critical components connecting the rotor hub to the gearbox, the main shaft withstands complex aerodynamic loads, gravity loads, and fatigue loads, serving as the core load-bearing component of wind turbines. With integrated capabilities in forging, heat treatment, machining, and inspection, all products undergo rigorous NDT, dimensional inspection, and mechanical property testing, supported by a full-process quality traceability system. Products are widely applied in onshore wind farms, offshore wind farms, and distributed wind power projects, serving domestic and international wind turbine OEMs with high reliability and long service life.