1. Process conditions of bright barrel nickel plating:

　　Nickel sulfate 200-280g/L

　　Nickel chloride 50-70g/L

　　Boric acid 45g/L

　　Main light agent 0.3-0.5ml/L

　　Adjuvant 5-8ml / L

　　Wetting agent 1ml/L

　　PH 4.2-4.8

　　Temperature 50-60 ℃

　　Voltage 10-12 V

　　2. Process range conditions of fast rack nickel plating brightener:

　　Nickel sulfate 200-280g/L

　　Nickel chloride 40-60g/L

　　Boric acid 40-50g/L

　　Main light agent 0.4-0.7ml/L

　　Softener 8-12ml/L

　　Auxiliary agent 3-5ml/L

　　Wetting agent 0.8-1.5ml/L

　　PH 4.2-4.8

　　Temperature 50-60 ℃

　　Voltage 10-12 V

　　3. Process conditions of nickel sulfamate nickel plating:

　　Nickel sulfamate 350-450g/L

　　Nickel chloride 15g/L

　　Boric acid 40g/L

　　A 30-40ml/L

　　B agent 25-35ml/L

　　C agent 10-15ml/L

　　PH 3.8-4.2

　　Temperature 50-60 ℃