Details
| Parameter | UBD ( Unbreakable) | SUBD ( Super Unbreakable) |
| ID | 150 mm | 148 mm |
| OD | 163 mm | 161 mm |
| Deep | 12 mm | 11 mm |
| Weight | 150 gm | 270 gm |
| Parameter | UBD ( Unbreakable) | SUBD ( Super Unbreakable) |
| ID | 150 mm | 148 mm |
| OD | 163 mm | 161 mm |
| Deep | 12 mm | 11 mm |
| Weight | 150 gm | 270 gm |