Functions and Uses：
1. It is a new-developed and lead-free process of white copper tin alloy. The deposit is white, bright, and suitable for rack plating.
2. There will be no allergic problems caused by nickel deposit. WJ-SP does not contain any toxic and harmful substances except the cyanide
3. It is in line with ?KO-TEX 100 Standard Level 1. Strong corrosion resistance and wear resistance, excellent weldability and low coefficient of friction.
4. It can replace nickel plating to be used in the applications of decorative and electronic plating.
Copper metal 13.5 ~ 14.5g / L
Tin metal 19 ~ 21 g / L
Zinc metal 3.8 ~ 4.2 g / L
Free cyanide 50 ~ 55 g / L
KOH 17 ~ 21g / L
PH 13.1 to 13.5
Temperature 60 ~ 64 ℃
Current density 1.0 ~ 2.0 A / dm2