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| NO. | ITEM NO. | SPECIFICATION | PACKING QUANTITY /CTN | |
| 1 | W4-20 | 400mm | 100pcs | |
| 2 | W4-20 | 600mm | 30pcs | |
| 3 | W4-20 | 800mm | 30pcs | |
| 4 | W4-20 | 1000mm | 30pcs | |
| 5 | W4-20 | 1200mm | 30pcs | |
| 6 | W4-20 | 1400mm | 30pcs | |
| 7 | W4-20 | 1600mm | 30pcs |
constructhion material transmission lock closing set series