[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - by use of ventilation ducts] a distinction, air conditioning system with air tube: galvanized steel, stainless steel; (possible use of fiberglass dust pollution, complex Banned) 2, central air conditioning system with air tube: galvanized sheet, color steel insulation board; (ventilation ducts can use fiberglass, composites) 3, environmental control systems with duct: galvanized steel, stainless steel; (use plastic , fiberglass, composites) 4, industrial ventilation duct systems: steel, galvanized sheet; (Libo vent pipe can use plastic, fiberglass, composites) Note: FRP duct can be divided into organic and inorganic two TDF flanged pipe, according to the design specification has banned organic material fire safety requirements; 5, special occasions with duct: Mine rubberized cloth duct, mining plastic vent pipe; (requiring fire-retardant anti-static mine safety features) [Tianjin City Jinzhong Ji HVAC purification equipment to recommend the star product - ductwork] to solve various ventilation ducts collide and principles of civil defense coordination pipeline, generally: "Let bassoon small tube production pipeline, there is pressure to make without pressure." For example, the water pipe and duct collision, you should water pipe bend. Cold and hot water pipes and water pipes collide, you should change the cold and hot water pipes. Pipeline Engineering, Tianjin Jinzhong Ji pipeline project (certified), provided by the Tianjin Tianjin Jinzhong Ji HVAC duct 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.