[Damping the noise of 6500-12-1 blowers (smoke exhaust fans)].
D000397:Air Pollution / Q000517:prevention & control; D008669:Metallurgy; D009622:Noise / Q000517:prevention & control*; D009787:Occupational Medicine; D014691:Ventilation
Obesshumlivanie nagnetateleĭ (dymososov) tipa 6500-12-1.