Ground Rod - 99.9% Pure Copper Bonded To Low Carbon Steel, High Corrosion Resistance, Bending Test Passed With 30-degree Angular Bend, Low Resistance Rate, Enhanced Tensile Strength Of 470n/mm Sq.

99.9% pure copper bonded to low carbon steel by electroplating, which ensures high resistance to corrosion.
1 Visual examination clean, no cracks, no burrs, clear mark
2 Verifications of dimension Length: a +5mm, diameter: a +0.1mm
3 Thickness of average copper coating a Y0.254(according to requests)
4 Bending test achieving permanent angular bent of 30 degrees, no pits, no cracks.
5 Resistance rate(IC) resistance rate a 0.059 IC. mm sq./m
6 Elongation a Y20%
7 Tensile strength a Y470N/mm sq.
8 Yield point a Y300N /mm sq.
9 Anti corrosion dipped in the 10i nitric acid at least 90hours and loss of corruption 15%