[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - ventilation ducts ventilation ducts] Material: General: steel duct (ordinary steel), galvanized sheet (galvanized iron) wind pipe, stainless steel vent pipe, FRP ventilation pipe, plastic vent pipes, composite ventilation pipe, color steel sandwich insulation panels ventilation tube, double-sided aluminum foil insulation ventilation pipe, single color steel duct insulation, adhesive cloth ventilation tubes (such as mine ventilation duct), mining plastic ventilation tubes. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product -] of the most commonly used types of duct into galvanized sheet steel duct, inorganic fiberglass duct composite fiberglass duct board. Three basic characteristics of galvanized sheet metal duct Duct: One of the earliest use of the duct, made of galvanized sheet steel production exhaust pipe, suitable for small amounts of moisture transport general gas pipelines have rust, no insulation and silencer function, making the installation of a long cycle characteristics. Inorganic fiberglass duct: newer duct type, the use of glass fiber reinforced inorganic materials, fire burn, corrosion-resistant, heavy weight, but more brittle hardness angle iron flange pipe deformation affected by weight crisp crack, no insulation and silencer performance, long production and installation period. Composite fiberglass duct board: The latest type of duct recent years, with the centrifugal glass plate as the substrate, glass cloth inside the complex galvanized pipe, aluminum foil moisture outside the complex fabric (imported sheet within the thermal black acrylic polymer coating, the outer layer is thinning pattern cloth / aluminum foil / kraft paper), after the fire with a special adhesive compound dry, and then by cutting, slotting, bonded reinforcement process and made using special sealants, pressure sensitive tape, thermal tape joint sealing, duct section according to size, pressure and then using the appropriate size of the reinforcement measures. With a silencer, insulation, fire, moisture, air leakage is small, light weight, easy construction, saving installation space, long life, economical advantages. Duct Fan | Tianjin Jinzhong Ji professional production of ventilation ducts | pipes provided by the Tianjin Tianjin Jinzhong Ji HVAC purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) is a leader in Tianjin, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the group leadership with the staff warmly welcome all inquiries negotiations to create a better future for the base.