Within the concept of municipal infrastructure we understand the buildings and devices used for performing obligatory local public services in protecting the environment, defined in the Article 16 of the Environmental Protection Law. These are: water suppliance, drawing off and cleaning waste and rain water, dealing with municipal refuse and depositing the remains of the municipal refuse.
Municipal infrastructure products made of polyester materials can be divided into five categories, most important being shafts, pumbing station, light-liquid separators, grease catchers, purification devices and cisterns which are most frequently used in civil engeneering.