Standard: GB/T17731-1999 purposes: mainly used for high resistivity environment, the casing pipe protection, temporary pipeline cathodic protection, tank and pipe network protection, electrical interference against strong grounding grid. 9.5 × 19mm high potential magnesium anode quality high purity magnesium production products conform ASTM97-98 standard. Specific process, anode has excellent electrochemical performance. Uniform process of cathodic protection anode consumption, and therefore have a longer life . In the actual use of the process, the working potential of between-1.8v-1.85v between the actual measurement, and therefore able to provide the most effective protection of the target structure. Soil resistivity greater than 8000ohm.cm recommend the use of high-potential magnesium anode.