Watch as we walk through the full process, from initial setup to real-world testing of prestressed concrete strand manufacturing. In this video, you'll see how Qingdao Cuishi Plastic Machinery's specialized equipment produces high-quality metal corrugated pipes and ducts used in bridge construction and post-tension concrete applications. We'll demonstrate the precision engineering behind our machinery and show actual production lines in our factory workshop, giving you valuable insights into the manufacturing process trusted by construction professionals worldwide.