1. Design Criteria of Steel Tower

1.1 Basic wind speed=144KMPH, Operational wind speed=110KMPH (3 second gust)

1.2 Exposure Category C and Topographic Category 3_300m crest height

1.3 Design Code: ANSI/TIA/EIA-222-G Latest

1.4 Max Antenna Load at top 12m of the tower is 15m2

2. Fabrication

2.1 Prototype assembly of each new tower type should be done before mass production.

2.2 Hot-dip galvanization in accordance with ISO1461-2009 and ASTM A123.

3. Steel Material

3.1 Legs Steel will be high tensile steel like Q420/Q345 with yield strength is 420/345MPa.

3.2 Others Steel will be middle steel like Q235 with yield strength is 235MPa.

3.3 Bolts will be follow ISO 898 grade 6.8/8.8

4. Quality and Quantity

4.1 We have been providing world top class design, engineering and manufacturing for telecommunication tower and related infrastructure materials worldwide and gaining a very good reputation in this field during past decades. 

4.2 Our professional team have more than 80 years experience in this industry field. We are paying a lot of attention for quality and quantity issues during each procedures in order to avoid any possible mistakes which help our clients a lot.
4.3 SGS or BV physical pre-inspection are acceptable