A.階梯式給電B.沖擊電流C.鍍前預(yù)熱D.反向刻蝕
A.NiSO4·7H2O 240~260g/L,HCl 120~130mL/LB.NiSO4·7H2O 150g/L,NH4Cl 20g/L,H3BO3 25g/L,pH5.6-5.9C.NiSO4·7H2O 200~250g/L,NaCl 7~12g/L,H3BO3 20-25g/L,檸檬酸鈉50-300g/L,pH7.0~7.2D.NiSO4·7H2O 120~150g/L,NaCl 7~12g/L,H3BO3 30~45g/L,pH5.0-5.6
A.0.25-0.3微米B.1.2-2.5微米C.6-12微米D.>6微米