... 4.design life of 10-15 years Permanent stainless steel cathode electrolysis technology is the world's copper ... electrolysis technology, permanent stainless steel cathode is the main equipment.Features:1,Conductive rod using 304 stainless steel molding,good strength and ... 10-15 years; Features:1,Conductive rod using 304 stainless steel molding,good strength and nigidity;2,Conductive rod with ...