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Our ERW (Electric Resistance Welded) Pipe Mill is a fully automated production line for manufacturing high-precision longitudinal welded pipes. It processes slitted steel strips into round and square/rectangular pipes via advanced roll forming and high-frequency welding technology.The full-automatic FFX high-frequency straight seam welded pipe production line and multi-functional 250F to 500F direct square moment pipe line produced by our company rank in the forefront in the industry!