17 yuan -150 yuan per root. The electroplated copper earthing rod produced by our company is used to cover the electrolytic copper molecules with 99.9% content uniformly on the low carbon steel core, so that the copper and the steel core are fully bonded. It has a thick copper layer, good adhesion, not peeling (can be rolled thread) and other characteristics. Its advantages are large tensile strength, strong corrosion resistance (can guarantee service life in more than 50 years). Electroplated copper earthing rod has strong protection both in natural corrosion and electrochemical reaction after deep underground. The earthing rod and earthing wire are welded by hot flux, so that the earthing device is completely protected by copper, which makes it a true maintenance-free earthing device. 1. Copper layer thickness ≥0.254mm (UL standard ≥0.254mm) 2. Flatness error ≤1mm/m 3. Plasticity of copper layer: The ground rod (wire) is bent into A U shape, and there is no crack on the inner and outer edge of the bending Angle; 4. Copper binding degree: The adhesion test showed that the copper layer was peeled off at the jaw bite of the vise, and the rest copper and steel were well combined. No strip size of existing combined thread earthing rod Product name type Thread Copper plating thickness mm mm Combination copper earthing rod ZH-GR14.2*1200 mm 16 ZH-GR17.2*1200 3/4 ZH-GR18*1200 M 18 ZH-GR20*1200 M 20 Fitting Size Product Name type Material Remarks Driving head Q0058 steel or percussion head for protection of earthing rod when hammer earth rod Connectors L0058 brass for connection between combined earthing rods L0034 L0016 L0018 L0020 bit Z0058 steel for combined earthing rods for drilling into the ground Z0034 Z0016 Z0018 Z0020 Note description Copper plated grounding rod ZH-GR14.2*1500 0.254 single root type grounding rod, one end flat and one end pointed specification model and copper layer thickness can be customized. Single root type ground rod, one end flat and one end pointed specifications and copper thickness can be customized. Zh-gr18 *2500 0.254 ZHGR20*1500 For other requests, please contact the factory for more information about products and services.