... bore, local, integral of All kinds of hardware tools, motor-power, hydraulic pressure, pneumatic element, Auto Accessories, air ... light weight, simplified installation, easy operating.3.Adopt frequency automatic tracking, polysleeve closed loop control4.replace oxy-acetylene ... WH-VI-50 Output power: 50KW Input voltage: three phase 380V 50-60HZ Oscillation frequency :15-35KHzSize: 550 × 650 × 1260mm ...