Earth Rods steel core with a coating of copper 1.They are made from a low carton, high tensile strength (600m/mm2 minimum) steel core with a coating of molecular bonded 99.9%pure electrolytic copper.2.The minimum thickness of this coating is 100micro (0.1mm), 200micro (0.2mm), 250micro (0.25mm)3.Extensible type rods have a rolled thread (UNC2A at each end).4.Rolled threads have a higher strength ...
[China Manufacturers]