Angle steel or steel pipe is used as the tower column material, which has small wind load coefficient and strong wind resistance. The tower column is connected by external flange, and the bolts are pulled, which is not easy to be damaged, so as to reduce the maintenance cost. The regular triangular layout of the tower column saves steel, small follow-up, small floor area, saves land resources, convenient site selection, light tower weight, convenient transportation and installation, short construction period, and the tower type is designed according to the wind load curve, The line is smooth, it is not easy to collapse in case of rare wind disaster, and reduce casualties of people and animals. The design conforms to the national code for design of steel structures and tower and mast design regulations, and the structure is safe and reliable. Effective service life: more than 50 years