... chord: 2.776m Bolt circle diameter: 1600mm Number of bolts: 44 Bolt diameter: M30 LZ is a high-tech enterprise focus ... and service in composites, it is one of the largest wind turbine blade manufacturers in the world. LZ is located in Lianyungang ... Brazil, Finland, India, Japan, Korea, Sweden, Turkey and UK etc. Wind Turbine Rotor Blade LZ31-1.25MW