Pipe peng on Instagram: "Plastic-Lined Steel Pipes Plastic-lined steel pipes are high-performance composite piping systems, consisting of a carbon steel outer shell and an inner lining of polyethylene (PE), polypropylene (PP), or polytetrafluoroethylene (PTFE). The steel shell ensures excellent structural strength and pressure-bearing capacity, while the plastic lining provides superior corrosion resistance, non-adhesion, and contamination-free performance. Suitable for conveying strong acids, a