... 5-100T adjustable speed high efficiency,easy operation ISO9001,CE automatic welding rotatorFeatures1. Self-aligned Welding turning roller can adjust ... in wind power, pressure vessel, petrochemical, pipeline, steel structure, boiler, shipbuilding, welding repair industry. Technical parameters Model No.HG1/HG1W ... (mm)670660945112511351135113514001400 self-adjusting automatic welding rotator