... , exothermic welding powder, grounding electrode, GEM and so on. GEM Resistance Reducing Material JSBOUND JB-DAProducts Descriptions Jsbound ... , construction, television, railway, road, military, mine and so on.Technology indexes *Resistance reducing rate: 50%-95% NO. TEST ... trial 7-12 range9.5ELIGIBILITY6Trial of resistance reducing agent on steel earthing device4 corrosion trial of pure resistance- ...