Various Steel Tube Producing Machine Line High frequency welded pipe production lines are widely used in industries such as construction, automobiles, machinery, petrochemical, aerospace, power, fertilizers, pharmaceuticals, and food. Specific application areas include: 1. Construction field: used for making steel structures, bridges, tunnels, buildings, etc. 2. Automotive field: used for making automotive chassis, frame, exhaust pipes, etc. 3. Mechanical field: used for making machine components, pipelines, hydraulic systems, etc. 4. Petrochemical industry: used for manufacturing oil, natural gas transmission pipelines, chemical pipelines, etc.