◆Widely used in high-speed ventilation systems and exhaust system. Silencers and ventilator trunks can be connected with flanges directly. ◆Low resistance pressure coefficient and ventilation resistance. Best solution for noise control and reduction On condition of high-speed ventilation. ◆Versatile and flexible choice of making according to different installation conditions, cleanliness and temperature resistant requirements. ◆According to different installation conditions, denoise requirements, noise source taking characteristic, resistance requirements and other factors, various models are available for you to choose.