| Customization: | Available |
|---|---|
| Certification: | CE ISO |
| Condition: | New |
Suppliers with verified business licenses
Audited by an independent third-party inspection agency






| No. | Item | Time(M) | Temperature | Remark |
| 1 | Pre-wash | 10 | Room temp.or 50°C | Tap Water or pure water |
| 2 | Alkali solution | 10-30 | 60-80°C | 2-4% NaOH solution |
| 3 | Hot water | 10-20 | 60-80°C | Tap water or pure water |
| 4 | Acid solution | 10-30 | 60-80°C | 2% HNO3 solution |
| 5 | Final wash | 15 | 60-80°C | Pure water |




