Drilling Head

Drill head is made of the high strength steel # 45 and produced by special hardening treatment process. It uses the thread (or riveted) fixed to the ground rods, which is conducive to the grounding rod into the hard soil layer, and this protects the ground rod.

http://www.chinagroundrod.com



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至: Zhejiang Huadian Lightning Protection Technology Co.,Ltd.
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Grounding Rod
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