Advantages：
1)They can be reused many times.
2)Various kinds of size, meet with the customers’requirements.
3)Surface: tin plated
| Item No. | Conductor | L | L1 | L2 | A | A1 | b | ф | R |
| WCJB-1 | 16-25 | 39.5 | / | 13 | 25 | 16.5 | 2.8 | 8.8 | 3.5 |
| WCJB-2 | 16-25 | 45 | 13 | 13 | 22 | 18 | 2.8 | 8.5 | 3.5 |
| WCJB-3 | 25-35 | 52.5 | 13.5 | 13.5 | 24.5 | 21 | 2.9 | 10.5 | 4 |
| WCJB-4 | 35-50 | 57 | 16 | 16 | 27.5 | 22 | 3 | 10.5 | 5 |
