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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
| MODEL | Copper layer Thickness | Diameter | Length of supply | Packing | |||
| Mil | mm | Inch | mm | Feet | mm | pc/bundles | |
| CN-B7 |
| 0.254 |
| 7.2 | 3 | 900 | 20 |
| 4 | 1200 | ||||||
| 5 | 1500 | ||||||
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%.
