| Sort | Color | Plating thickness | Temerature | Salt spray test | Remarks |
| Zinc | Silver/Blue/
Multicolour/Black | 10-20 | ≤160° | >48hr | Applied to a wild rangeof products,the deeper cilour the better salt spray resistance |
| Nickel plating | Silver | 10-30 | ≤200° | >48hr | Applied to a wild range of products |
| NI-CO-NI | Silver | 20-30 | ≤200° | >72hr | Salt spray-resistance wet and heat resistance |
| Epoxy | Black | 10-30 | ≤120° | >96hr | Well climate and salt spray resistance |
| Nickel | Dull silver | 5-30 | ≤200° | >200hr | Applied to various shape and pated deep inner hole |
Aluminium
hydronium | Silver white | 10-30 | ≤400° | >200hr | Average coating,exellent adhesion to the magnetic field and no shielded |
| Parylene | Clarity | 5-30 | ≤200° | >200hr | Average coating,exellent adhesion to the magnetic field and no shielded |
