For making tanged metal sheet. It is efficient with double line needle. Change single needles easily, and low cost. Dia. Of needle: 1.2mm, 1.5, for complex sheet thick.1.2~1.6mm, and 1.5~3.0mm 1. Power: 380AV, 50HZ, 4KW; 2. L*W*H: 1.6*1.4*1.4m; 3. N.W.: appr.2000kgs 4. Speed: 25m/hour, 68 times/min 5. Work range: 400/1000/1500mm 6. Thickness of metal: 0.1~0.25mm