H Beam Production Line, H Beam Welding Machine, H Beam Assembly Machine manufacturer / supplier in China, offering Gantry Type Submerged Arc Welder H Beam Seam Welder Automatic Welding Machine, 20 Ton Polyurethane Wheels 200t 5 Ton Pipe Rotation Tube Welding Rotator, Automatic Spot Welding Welder H 1.5m 1.8m 2m Beam Assembling Machine and so on.