Specification
| Code | Length | Parallels per set |
|---|---|---|
| 6576-9A | 100mm,150mm, 200mm | 8 pairs of standard blocks,1 pair of special-shaped blocks |
| Code | Length | Parallels per set |
|---|---|---|
| 6576-9A | 100mm,150mm, 200mm | 8 pairs of standard blocks,1 pair of special-shaped blocks |