Rotor diameter (max.): 70m Largest chord: 3.1 Bolt circle diameter: 1800mm Number of bolts: 54 ... service in composites, it is one of the largest wind turbine blade manufacturers in the world. LZ is located ... before.In 2005, technology and production line for 1.5MW blade was transferred from Germany. The subsidiary ... India, Japan, Korea, Sweden, Turkey and UK etc. Wind Turbine Rotor Blade LZ34-1.5