This equipment is specifically designed for surfacing welding the inner hole surface and shallow grooves of steam turbine valves. With a stationary workpiece design, its ETR infinitely rotating welding head (eliminating cable winding concerns) drives the welding torch for circular welding, enabling in-site repair of valve internal surfaces without disassembly, thereby significantly improving maintenance efficiency and cost-effectiveness.<br> Key Features：<br> 1.On-site repair without valve disassembly, reducing downtime drastically<br> 2.360° infinite rotation eliminates cable tangling, ensuring weld consistency<br> 3.Supports stainless steel, nickel alloys for corrosion/heat resistance