The 3PE coated steel pipe generally consists of a 3 layer structure, the 2PE coated steel pipe consists the second and the third layer.
The first layer is epoxy powder（FBE>100um）
The second layer is polyethylene adhesive copolymer（AD）170～250um
The third layer is polyethylene（PE）2.5～3.7mm
Size: Diameter: 159mm – 1626mm Length: 8m – 15m.
In the actual operation, three materials are mixed and integrated, and after processing, they are firmly combined with steel pipe to form a fine anti-corrosion layer. The processing methods are generally divided into two types: winding type and circular mould cladding type.