School Noise Control Metal Transparent Sound Obex Project
Ut commune studentium genus in altera schola non afficeret, placuit strepitum reductionem strepitus obice prope strepitum fontem instituere.Via sectionis sonus claustrum factus est schedae metallicae galvanized materialis, 3.5 metra alta et summitas rectangula, quae ictum strepitus in scholis studentibus efficaciter attenuat.
Post tempus: Nov-01-2019