[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - duct] 1.2 Terminology (1) inspection lot: according to the same production conditions prescribed manner or aggregated with them for inspection by a certain number of sample test body composition. (2) test: A test project performance measurement, inspection, testing, etc., and the results were compared with the standard requirements to determine whether each of the activities carried out by qualified performance. (3) the transfer of inspection: undertake side by side with the completion of construction and the possibility of both parties to continue construction inspection activities to make confirmation. (4) the master project: construction of safety, health, environmental protection and public interests play a decisive role in the test project. (5) the general project: In addition to the master project inspection items. (6) for sampling: In accordance with the provisions of the sampling plan, randomly from entering the material, components and parts, equipment or construction engineering inspection project, approved by the examination of a number of samples drawn test conducted. (7) Duct: metal, non-metal sheet or other material made for ventilation ducts. (8) Duct: using concrete, bricks and other building materials masonry flange angle iron pipes, channels for air circulation. (9) Ventilation: air, exhaust, dust, pneumatic conveying and smoke control systems engineering collectively. (10) Air Conditioning Engineering: Air conditioning, air purification and collectively clean air conditioning systems. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - inorganic glass steel ventilation ducts] 1, lightweight, high strength: density inorganic glass steel ventilation ducts for steel 1/4 strength and hand lay-strength polyester fiberglass approximate to meet the strength and stiffness of the various types of ventilation tube design requirements. 2, water, corrosion: inorganic glass steel ventilation ducts good water resistance, softening coefficient of 0.8 to 0.9, no rust plant ventilation pipes, long service life. Will rust galvanized metal duct pipe using three to five years, the life of inorganic glass steel ventilation ducts or more than three times the length of galvanized iron. 3, good heat resistance, fire resistance: good heat resistance inorganic glass steel ventilation ducts, and can be used at 300 ℃ temperature conditions. Its fire performance is better, by the National Fire Protection Building Materials Quality Inspection Center, inorganic glass steel ventilation ducts or genus A grade material. Therefore, heat resistance and fire resistance inorganic glass steel ventilation ducts are better than polyester fiberglass pipe. 4, forming convenient: inorganic glass steel ventilation ducts can lay hands can also be mechanized production of sheet metal forming and then cutting the adhesive. Production process without harmful gas emissions, do not pollute the environment, does not affect the health of workers. 5. Easy installation: inorganic glass steel ventilation ducts into insulation sandwich pipe insulation tubes and not two single-layer structure. Interlayer insulation can be made good time in the factory, on-site installation can only locate, unlike galvanized metal duct that, after duct installation, but also re-coated metal outer insulating layer, increasing the difficulty of on-site construction, extension of time. Inorganic glass steel ventilation ducts can also be spliced ??at the construction site of 2 to 3 tubes, making it into a whole long tube, once lifting, saving time and labor. 6, abundant raw material resources: abundant raw material resources inorganic glass steel ventilation ducts, magnesium production and reserves in the world. Not only can ensure long-term supply of magnesium chloride, and cheap. Total plate flange pipe, Tianjin Jinzhong Ji ventilation engineering (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.