Fig. 11

(a) Flush-mouthed door; (b) T-door; (c) Double door bottom sound insulator;Â (d) and (e) Extruded particleboard rubber laminate schematic and specimens.

(a) Flush-mouthed door; (b) T-door; (c) Double door bottom sound insulator;Â (d) and (e) Extruded particleboard rubber laminate schematic and specimens.