The metallic pipe coated with a thermoplastic polu00ecmero for the transport of petroleum products, and process for coating a metallic pipe with a thermoplastic jacket

摘要

"Metal pipe coated with a thermoplastic polu00ecmero for the transport of petroleum products, and process for coating a metallic pipe with a thermoplastic jacket.Metal pipes are presented with thermoplastic shirt improved.In which the shirts consist essentially of polyamide 11 or polyamide 12 and methods for their preparation and use.