ppr pipe extrusion line_ppr pipe extrusion line

The core of the ERW pipe manufacturing process begins with the heating of steel strips. These strips are continuously fed into the machine, where they are shaped into a cylindrical form. The edges of the strip are then brought together and subjected to electric resistance welding. This method generates heat through the electrical resistance of the steel, allowing the edges to melt and fuse together without the need for any fillers or additional materials.