... - duty wind tower production line. 2.CE certificate. 3.Price competitive 4.One year warranty. The Wind Tower Producting Line is the welding ... abroad, and mature manufacturing technology. This system mainly consists of CNC Cutting Machine, Milling Edging Machine, Welding Manipulator, Welding Rotator and ... stroke of cross rollers220Travelling hydraulic cylinder stroke, mm300 Wind tower production line