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PEX-Al-PEComposite Pipe is produced using butt-welded aluminum pipe as a core, with an extruded inside layer of cross-linked polyethylene or polyethylene. An adhesive layer is used to bond the inside layer to the wall of the aluminum pipe. An outer layer of cross-linked polyethylene or polyethylene and an adhesive layer is extruded to the outer wall of the aluminum pipe. |