List of Articles پلی اتیلن پرچگال Open Access Article Abstract Page Full-Text 1 - Experimental Study of the Mechanical Properties of High Density Polyethylene/Glass Fibers/Carbon Nanotubes Nanocomposite Pipes Produced by Extrusion Method for Use in Oil and Gas Pipelines M. Kiani V. Parvaneh A. Dadrasi M. Abbasi