ERW MILL(Φ 219mm-Φ 630mm) Following fast growth of Chinese economy, high-grade, large caliber and high frequency straight seam welded pipes are widely used in areas such as petroleum transportation, urban pipe line networks and constructions, pushing up demand for them which creates new development opportunities for pipe line manufacturing firms and equipment manufacturers. During the recent years, by learning and developed large caliber ERW production lines(Φ 219mm - Φ 630mm)with our own intellectual property rights. Especially some single units, such as squeeze roller have been patented in China. So far, we have finished designing large caliber ERW production lines specifications: ERW16", ERW20", ERW24".
