Fusion-bonded Epoxy Coated Steel Pipe, also known as Fusion-bonded Plastic Pipe, Steel-Plastic Composite Pipe, and Plastic Coated Steel Pipe, is a steel pipe base material with a plastic corrosion-resistant layer fused onto the inner surface of the steel pipe (base pipe) by spraying, rolling, dipping, or absorbing methods, or with a plastic corrosion-resistant layer fused onto both the inner and outer surfaces. The coated steel pipe offers excellent corrosion resistance and relatively low friction resistance. Epoxy resin coated steel pipes are suitable for conveying water supply and drainage, seawater, warm water, oil, gases, and other media. Polyvinyl Chloride (PVC) coated steel pipes are suitable for conveying drainage, seawater, oil, gases, and other media.