flexible circular sound attenuators, insulation 50 mm.
external sheet of aluminium with mineral wool insulation and inner sheet of aluminium. Not flammable in accordance with DIN 4102 class A1, resistant to 200 ° C, bending radius equal to 3 times the diameter.
coupling
Brofer Srl - All rights reserved - P.I. 01459590285
Cap. soc. i.v. € 100.000 Reg. imp. PD R.E.A. n° PD - 161099