- BLU-A High Corrosion-resistant Environment-friendly Blue Zinc Passivaton
- 2016-11-11 04:50
- pt;"If you need the white passivation effect, process flow asfollows:zinc platingpieces→water rinse(twice)→0.5~1%nitri
- imitation gold plating process chemical products 207
- 2016-08-18 19:21