光杆卡子质量好，强度高，重量轻，方便使用，单，双，多螺栓适用于每一种井。
所有光杆卡子都用级别高，热处理的钢铸造。螺栓镀镉，铰链销4140热处理。
| Model型号 |
| Specification参数 | Working Load工作载荷 |
| Weight重量 |
| WL12000 |
| 22mm | 78.5KN(8010kgf) |
| 5.6Kg |
| 25mm | 100KN(10200kgf) |
| 5.5Kg |
| 25.4mm(1") | 100KN(10200kgf) |
| 5.5Kg |
| 28mm | 118KN(12040kgf) |
| 5.5Kg |
| 28.6mm(1 1/8") | 118KN(12040kgf) |
| 5.5Kg |
| WL16000 |
| 25mm | 118KN(12040kgf) |
| 7.3Kg |
| 25.4mm(1") | 118KN(12040kgf) |
| 7.3Kg |
| 28mm | 157KN(16020kgf) |
| 7.2Kg |
| 28.6mm(1 1/8") | 157KN(16020kgf) |
| 7.2Kg |
| 31.8mm(1 1/4") | 157KN(16020kgf) |
| 7.1Kg |
| 32mm | 157KN(16020kgf) |
| 7.1Kg |
| WL18000 |
| 31.8mm(1 1/4") | 178KN(18160kgf) |
| 10.35Kg |
| 32mm | 178KN(18160kgf) |
| 10.35Kg |
| 38.1mm(1 1/2") | 178KN(18160kgf) |
| 10.35Kg |
