Complaint
| Material | dia(mm) | Aperture(mm) | Theoratical Weight (kg/m2) | Surface Treatment |
| Stainless Steel | 1 | 5 | 3.3 | Natural polished |
| 1 | 8.4 | 3.5 | ||
| 1.2 | 6.8 | 5.8 | ||
| Al Alloy | 1.2 | 4 | 1.9 | Paint-spray /Anodizing |
| 1.2 | 5 | 1.5 | ||
| 1.2 | 6 | 1.25 | ||
| 1.2 | 7 | 1.13 | ||
| 1.2 | 8 | 1.2 | ||
| 1.2 | 9 | 0.85 | ||
| Aluminum | 1 | 5.5 | 1.5 | |
| 1.2 | 6.8 | 2.5 | ||
| 1.2 | 8.5 | 2 | ||
| Carbon Steel | 0.9 | 6.3 | 4 | |
| 1 | 6.8 | 5.5 | ||
| 1.2 | 8.5 | 6 |
