Permanent stailess steel starter sheet used in metallurgy industry as copper electrolytic refining starter sheet or electrowinning starter sheet . for more information , pls don't hesitate to contact us at once . Featuers : 1, life of use up to about 10years ; 2,operation under high electrical current density is allowed , with a range of 280~360A/M2 ,higher than traditional electrical current density (240-260A/M2 ) 3,high electrical current efficiency up to 96~99 % ,higher than the current[...]