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By certification 
Qingdao Sangao Metal Structure Co.,Ltd is a professional tapered steel poles for building columns manufacturer and factory, we have been exporting high quality tapered steel poles for building columns made in China for years, welcome to contact us.
Specification
1,hot dip galvanization layer>75um
2,polyester powder painted>80um
3,Q235/345 steel plate
4,strong wind resistant
5,ISO9001
Material |
High-quality steel Q235/345 from BAOSTEEL Group |
Welding Technique |
Automatic welding |
Surface Treatment |
Hot dip galvanizing and powder painting |
Thickness of Zinc Coating |
≥ 86um |
Anti-wind Capacity |
36.9m/s |
Anti-corrosion Lifetime |
≥20 years |
Type option |
Street Lamp pole, garden light pole,high mast light pole,landscape light pole |
Shape option |
Conoid ,Multi-pyramidal,Columniform,polygonal or conical,round,square |
Production Process |
Raw material test → Cutting →Molding or bending →Welding (longitudinal )→Dimension verify →Flange welding →Hole drilling →Calibration →Deburr→Galvanization →powder coating ,painting →Recalibration →Thread→Packages |
