1. Type: conical or polygonal;  2. Material: Q235, Q345 or GR65; 3. Out coating:Hot dip galvanized.                                       

We have got 220kV and 500kV Substation Structure Quality Certificate from Power Industry Steel Tower Qualified Inspection & Test Center from 2001 year.           

Our power-purpose steel pipes are made from quality sheet through bending, forming, automatic welding and hot galvanization. We can reach one-run machining length of 14m and can bend sheet of thickness up to 25mm.We adopt advanced welding procedures, automatically weld main joints and reach rank-II welding quality.