puerta isofonica 15
door isofonica is incorrectly written, and should be written as "equal-loudness" being its meaning: Acoustic doors or isophonic doors are, perhaps, technical doors most characteristic of colleges, schools, hospitals, public buildings, etc. We talk about those precious technical doors large and at the same time agile, that surprise you when opened with a myriad of sounds that are kept with zeal in the stay of to the side.