Features and functions: 1. Special for mullion V-shaped welding and cross welding cleaning 2. Special centering device for easy adjusting 3. Reliable clamping and high processing quality Technical parameter: Working air pressure: 0.5~0.8MPa Air consumption: 15L/min Profile Height: 80(mm) Profile Width: 120(mm) Overall Dimension: 860 x 650 x 1120 (mm) Weight: 250(kg)