Tecsound Bariyer

Tecsound SY 35 – 1,8mm – 3,5kg/m²     (22db)
Tecsound SY 50 – 2,5mm – 5 kg/m²    (25db)
Tecsound SY 70 – 3,5mm – 7kg/m²       (28db)
Tecsound SY 100 – 5mm – 10kg/m²      (30db)