Negative flexible duct

Negative pressure ventilation duct 1*made of fire-retardant pvc material and helix steel wire pvc 2*easily to connect due to flexible 3* enduring the high temperature and oleic acid, 4* Hose body transverse no juncture, Has no air leakage, Wear-resisting, Corrosion resistance, Antistatic, The wind drag small, light-weight,The compressive strength etc advantages; 5*Main color: yellow, red, orange ,white, black, green etc. * Application :Widely used in these working environment