Quality of Taiwan, Internation Patent

The series ES products of REX earth stone have obtained three items of international patens and the international quality system standard certification, also gone through the quality and RoHS heavy metal testing by related China national authoritative institutions, and the preliminary examination and checking by multinational patent institutions, such as Japan, Korea, Germany, India, Russia and so forth.
The patent of carbon crystal earth (see illustration)
●The surface of waviness enlarges the REX earth stone’s contact area with the soil, so as to be good for the tip discharging, effectively reduce the earth resistance, and bring more efficient protective function into play.
●Both the carbon crystal and the conductive mineral belong to the natural mineral, have the same electric property with the soil, have excellent compatibility with the soil, and more effectively reduce resistance and prevent from corrosion.
Patent technology of electrode (see illustration)
●The design of screw thread form reinforces the contact area and the stability of the 316 stainless electrode tie-in and the REX earth stone, so as to make the current pass smoothly.
●The screwy stainless steel bars are crisscross, which can be good for fastness and increase the folding strength, so as to be beneficial for the technology of integrative forming in the high-pressure fabrication schedule, moulding the REX earth stone’s material and the accessories of the electrode tie-in together with high pressure, so that the density of the REX earth stone can arrive at certain height, and the earth module can be firm as a rock.

(Figure – patent certificate, ISO certificate, production licence, RoHS certification, business licence and approval certificate)