PROBLEMS ARISING IN THE PROCESS OF CLEANING CLOSED HORIZONTAL DRAINS AND MODERN SOLUTIONS TO THEM. International Bulletin of Applied Science and Technology, [S. l.], v. 3, n. 6, p. 631–634, 2023. Disponível em: https://researchcitations.com/index.php/ibast/article/view/1969.. Acesso em: 19 apr. 2025.