I. Specification 1. Material: Q235 / Q345 or material equivalent for required standards 2. Voltage: 10KV, 110KV, 220KV, 500KV or as your requirements 3. Antenna Support: 3-20 PCS 4. Wind Pressure: 5-190 KM/H 5. Welding; CO2 welding or submerged arc auto methods, no fissure, scar, overlap, layer or other defect. 6. Surface Coating: Hot DIP Galvanization or Painting (special treating for the long duration sea transportation) 7. Design Lifetime: More than 30 years II Experience and certifications: 1. ISO 9001: 2008 /ISO14001: 2004, OHSAS GB/T 28001-2001 2. In industry: Since 2006 3.500Kv tower manufacturing capacity, self design and strong technology support from Electrical design company. Our company is specialized in manufacturing steel tower with advanced manufacturing facility. This kind of transmission line tower is featured of great loading, long time life and sound stability, widely used in electric power, communication project.