電力滑車（卸扣式三輪木滑輪）
| Model | Size | S.W..L. | For Wire Dia | Packing Dimension | Qty/case | Weight |
| (in) | (lbs) | (in) | (cm) | (psc) | (kg/pc) | |
| J7903 | 3 | 1200 | 3/8 | 57x56x73 | 100 | 1.5 |
| J7904 | 4 | 1800 | 1/2 | 99x39x70 | 100 | 2.5 |
| J7905 | 5 | 2400 | 5/8 | 80x67x67 | 48 | 2.8 |
| J7906 | 6 | 3200 | 3/4 | 96x67x54 | 48 | 6 |
| J7908 | 8 | 4800 | 1 | 113x82x75 | 30 | 9.6 |
| J7910 | 10 | 8000 | 1-1/8 | 101x71x95 | 15 | 15.5 |
| J7912 | 12 | 10000 | 1-1/4 | 106x83x73 | 8 | 25 |
