National electric code grounding rod 7.2 MM for anti thunder device

FEATURES    

1. Thickness no less than 0.25mm

2. Tensile Strength than 580N/ mm2

3. Straightness error less than or equal to 1mm/m

4. At least 50 years service life

5. Easy installation and low construction cost

Features:

1. Advanced four dimensional continuous electroplating.

2. Uniform plating over 10mil.

3.Better resist corrosion allowing for a 30-years service life in most soils.

4. The electrical conductivity is more than 20%.