Investigation of the External Loads Applied on the PVC and PE Pressurized Pipes. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ), [S. l.], v. 39, n. 1, p. 406–426, 2021. DOI: 10.55562/jrucs.v39i1.220. Disponível em: https://jrucs.iq/index.php/JAUCS/article/view/220. Acesso em: 16 apr. 2026.