



| Description | Detailed Specification and Major design Parameters | 
| Design Code | ANSI/TIA222G, European Standard and others | 
| Design Loading | 1. Antenna load area as per specified by Clients worldwide. 2. Wind speed as per requested by the clients. 3. Deflection & Twist Angle, Exposure category, Topographic category as per specified by clients. | 
| Steel Grade | 1. High strength low alloy structural steel: Q420B which is equivalent with ASTM Gr60 2. High strength low alloy structural steels: Q355B which is equivalent with ASTM Gr50 or S355JR 3. Carbon Structural Steel: Q235B which is equivalent with ASTM A36 or S235JR | 
| Welding Method | CO2 Shielded Arc Welding & Submerged Arc Welding(SAW) | 
| Welding Standard | AWS D1.1 | 
| Surface Treatment | 1. Hot dip galvanization in accordance with Chinese standard GB/T 13912-2002 or American standard ASTM A123  2.Can be powder coated or painted according to clients' request | 
| Once Forming |  12m Once forming without joint | 
| Factory test | Tensile test,Elements analysis, Sharpy test(impact test), Cold Bending, Preece test,Hammer test | 
| Joint | Joint with insert mode, flange mode. | 
| Production Capacity | 70,000tons/year | 



















 
                  
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