316L S.S blank; Cu cladded 304 S.S hanger bar; high conductivity; high mechanic strength; 10~15 years service lifetime. Unionsum is the most professional company in China to provide cathodes for nonferrous electrowinning. As for stainless steel cathode, our products are widely used in Copper and Nickel electrowinning plant for its below performance:1. The connection area between Copper and S.S is ...