... lead, zinc and other nonferrous metals electrolysis and potassium chlorate, potassium perchlorate, potassium persulfate, ammonium persulfate electrolysis.Product features1. The main ... all use the imported electrolytic copper (copper content 99.99%) for manufacture,4. the electric conductivity is good ... more reliable, the service life is much longer; 7. It has the constant voltage, constant current mode ...